as of december 31 , 2020 , we had $ 1.46 billion available for borrowing on our revolving credit facility with interest on borrowings at variable rates based on libor . we currently do not use derivative financial instruments to manage the potential impact of interest rate risk . accordingly , our interest expense for any particular period will fluctuate based on libor and other variable interest rates if we borrow on our revolving credit facility . ​ on july 27 , 2017 , the financial conduct authority ( the authority that regulates libor ) announced that it intends to stop compelling banks to submit rates for the calculation of libor . on november 30 , 2020 , ice benchmark administration , the administrator of usd libor announced that it intended to consult on ceasing publication of one-week and two-month usd libor by december 31 , 2021 and does not intend to cease publication of the remaining usd 26 libor tenors until june 30 , 2023 , providing additional time for existing contracts that are dependent on libor to mature . financial industry working groups are developing replacement rates and methodologies to transition existing agreements that depend on libor as a reference rate ; however , we can provide no assurance that market-accepted rates and transition methodologies will be available and finalized at the time of libor cessation . if clear market standards and transition methodologies have not developed by the time libor becomes unavailable , we may have difficulty reaching agreement on acceptable replacement rates under our revolving credit facility . if we are unable to negotiate replacement rates on favorable terms , it could have a material adverse effect on our earnings and cash flows . ​ item 1b . unresolved staff comment s ​ none . ​ item 2. propertie s ​ as of december 31 , 2020 , we operated approximately 300 metals service center processing and distribution facilities in 40 states in the u.s. and in 13 other countries , and our corporate headquarters . in the opinion of management , all of our service center facilities are in good or excellent condition and are adequate for our existing operations . these facilities currently operate at about 50-60 % of capacity based upon a 24-hour seven-day week , with each location averaging approximately two shifts operating at full capacity for a five-day work week . we have the ability to increase our operating capacity significantly without further investment in facilities or equipment if demand levels increase . ​ we leased 83 of the approximately 300 processing and distribution facilities that we maintained as of december 31 , 2020. in addition , we have ground leases and other leased spaces , such as depots , sales offices and storage , totaling 5.6 million square feet . total square footage on all company-owned properties is approximately 29.3 million and represents approximately 84 % of the total square footage of our operating facilities . in addition , we lease our corporate headquarters in los angeles , california . our leases of facilities and other spaces expire at various times through 2045 and our ground leases expire at various times through 2068. the aggregate monthly rent amount for these properties is approximately $ 2.4 million . ​ item 3. legal proceeding s ​ the information contained under the captions “ legal matters ” and “ environmental contingencies ” in note 16 — “ commitments and contingencies ” of part ii , item 8 “ financial statements and supplementary data ” is incorporated by reference herein . ​ item 4. mine safety disclosure s ​ not applicable . ​ part i i ​ item 5. market for registrant 's common equity , related stockholder matters and issuer purchases of equity securities ​ our common stock is owned by 173 stockholders of record as of february 19 , 2021. our common stock has traded for the past 27 years on the nyse under the symbol “ rs ” and was first traded september 16 , 1994. our stockholders of record exclude those stockholders whose shares were held for them in street name through banks , brokers or other nominee accounts . ​ we have paid quarterly cash dividends on our common stock for 61 consecutive years and have never reduced or suspended our regular quarterly dividend . in february 2021 , our board of directors increased the regular quarterly dividend amount 10.0 % to $ 0.6875 per share . this recent increase is the 28 th increase in our dividend since our ipo in 1994. further increases in the quarterly dividend rate will be evaluated by the board based on conditions then existing , including our earnings , cash flows , financial condition and capital requirements , or other factors the board may deem relevant . we expect to continue to declare and pay dividends in the future , if earnings are available to pay dividends , but we also intend to continue to retain a portion of earnings for reinvestment in our operations and expansion of our businesses . we can not assure you that any dividends will be paid in the future or that , if paid , the dividends will be at the same amount 27 or frequency as paid in the past . our payment of dividends in the future will depend on business conditions , our financial condition , earnings , liquidity and capital requirements and other factors . ​ on october 23 , 2018 , our board of directors amended our share repurchase plan increasing by 5,000,000 shares the total number of shares authorized to be repurchased and extending the duration of the program through december 31 , 2021. our share repurchase plan does not obligate us to acquire any specific number of shares . story_separator_special_tag we have consolidated the financial results of fpc since august 1 , 2008 when we acquired feralloy corporation as part of our acquisition of pna group , inc. ​ on october 23 , 2018 , we purchased the remaining 40 % noncontrolling interest of acero prime , a toll processor in mexico , which increased our ownership from 60 % to 100 % . acero prime , headquartered in san luis potosi , has four toll processing locations . acero prime performs metal processing services such as slitting , multi-blanking and oxy-fuel cutting , as well as storage and supply-chain management for a variety of different industries including automotive , home appliance , lighting , hvac , machinery and heavy equipment . we have consolidated the financial results of acero prime since october 1 , 2014 when we acquired a controlling interest . ​ internal growth activities ​ we continued to maintain our focus on internal growth by opening new facilities , building or expanding existing facilities , adding and upgrading processing equipment , improving the safety of our operations and enhancing the working environments of our employees . our capital expenditure budgets have been at historically high levels in recent years . our 2021 capital expenditure budget is $ 245 million ; however we expect our 2021 actual capital expenditures will be higher due to additional spending on projects carried forward from our 2020 budget . ​ we have made significant capital expenditure investments that have totaled nearly $ 1 billion over the past five years . in 2020 , we performed value-added processing on 49 % of the orders we shipped , significantly higher than our historical 33 rate of approximately 40 % . these significant investments have expanded our value added processing capabilities that our managers in the field have successfully leveraged to increase the percentage of our orders with value added processing , which has significantly contributed to our record gross profit margin of 31.5 % that is 640 basis points higher than our gross profit of 25.1 % in 2014 . ​ we believe that our ability to finance our investments in processing equipment and facilities provides a competitive advantage for us , as we can provide our customers with a higher quality product and expand our services to them , which we believe many of our competitors do not have the ability to provide . ​ results of operations ​ the following table sets forth certain income statement data for each of the last three years ended december 31 , 2020 ( dollars are shown in millions and certain percentages may not calculate due to rounding ) : ​ replace_table_token_9_th ( 1 ) gross profit , calculated as net sales less cost of sales , and gross profit margin , calculated as gross profit divided by net sales , are non-gaap financial measures as they exclude depreciation and amortization expense associated with the corresponding sales . about half of our orders are basic distribution with no processing services performed . for the remainder of our sales orders , we perform “ first-stage ” processing , which is generally not labor intensive as we are simply cutting the metal to size . because of this , the amount of related labor and overhead , including depreciation and amortization , is not significant and is excluded from cost of sales . therefore , our cost of sales is substantially comprised of the cost of the material we sell . we use gross profit and gross profit margin as shown above as measures of operating performance . gross profit and gross profit margin are important operating and financial measures as their fluctuations can have a significant impact on our earnings . gross profit and gross profit margin , as presented , are not necessarily comparable with similarly titled measures for other companies . ​ ( 2 ) sg & a includes $ 0.9 million and $ 19.1 million of gains related to the sale of non-core property , plant and equipment in 2019 and 2018 , respectively . ​ ( 3 ) see “ expenses ” below for discussion of our impairment charges . ​ ​ 34 year ended december 31 , 2020 compared to year ended december 31 , 2019 ​ net sales ​ replace_table_token_10_th ​ tons sold and average selling price per ton sold amounts exclude our toll processing sales . same-store amounts exclude the results of our 2019 acquisition . ​ our net sales were lower in 2020 compared to 2019 due to lower tons sold and a lower average selling price per ton sold . ​ our same-store tons sold decreased 10.9 % in 2020 compared to 2019 , despite one additional shipping day in 2020 , due to the significant decline in demand for the products we sell as a result of covid-19 . ​ demand for the products we sell was lower in 2020 compared to 2019 for nearly all the end markets we serve as a result of the adverse impacts of covid-19 . ​ demand for the toll processing services we provide to the automotive market fell sharply in the first half of 2020 , declining 28.6 % , but rebounded significantly in the second half of 2020 as many automotive oems and steel and aluminum mills supplying the automotive industry re-opened in the third quarter of 2020 following covid-19-related shutdowns , with our total toll processing volumes down only 15.7 % in 2020 compared to 2019 and returning to pre-pandemic levels at the end of 2020. demand in nonresidential construction ( including infrastructure ) , our largest end market served , and heavy industry ( agricultural , construction and mining equipment ) markets were lower in 2020 compared to 2019 , with demand improving at the end of 2020. in the aerospace end market , demand in the military , defense and space portions of the market was strong in 2020 ; however , commercial aerospace demand decreased

liquidity and capital resources ​ operating activities ​ net cash provided by operations of $ 1.17 billion in 2020 decreased from $ 1.30 billion in 2019. the 9.9 % decline in our operating cash flow year-over-year generated from the 47.4 % decline in net income attributable to reliance was a 38 result of our lower net income offset by increases in non-cash impairment of long-lived asset charges and decreased working capital investment ( primarily accounts receivable and inventory less accounts payable ) in 2020. to manage our working capital , we focus on our days sales outstanding and on our inventory turnover rate , as receivables and inventory are the two most significant elements of our working capital . our average days sales outstanding rate was 41.9 days in 2020 compared to 42.5 days in 2019. we achieved our 2020 inventory turn rate ( based on tons ) goal of 4.7 times ( or 2.6 months on hand ) , an increase from 4.5 times ( or 2.7 months on hand ) in 2019 . ​ income taxes paid were $ 87.5 million in 2020 , a significant decrease from $ 214.3 million in 2019. the decrease is mainly due to lower estimated taxable income for 2020 compared to 2019 and the utilization of tax overpayments for the 2019 tax year that reduced taxes paid in 2020 . ​ investing activities ​ net cash used in investing activities of $ 188.4 million in 2020 decreased significantly from $ 419.1 million used in 2019 , mainly due to $ 170.9 million less cash used to fund our acquisitions in 2020 compared to 2019 and decreased capital expenditures .


 Write a concise suspicious activity report of the following text delimited by triple backquotes. Return your response as a formal report which covers the key points highlighting the location,dates,entity names and account holder information in chronological order of the text.
     ```liquidity and capital resources ​ operating activities ​ net cash provided by operations of $ 1.17 billion in 2020 decreased from $ 1.30 billion in 2019. the 9.9 % decline in our operating cash flow year-over-year generated from the 47.4 % decline in net income attributable to reliance was a 38 result of our lower net income offset by increases in non-cash impairment of long-lived asset charges and decreased working capital investment ( primarily accounts receivable and inventory less accounts payable ) in 2020. to manage our working capital , we focus on our days sales outstanding and on our inventory turnover rate , as receivables and inventory are the two most significant elements of our working capital . our average days sales outstanding rate was 41.9 days in 2020 compared to 42.5 days in 2019. we achieved our 2020 inventory turn rate ( based on tons ) goal of 4.7 times ( or 2.6 months on hand ) , an increase from 4.5 times ( or 2.7 months on hand ) in 2019 . ​ income taxes paid were $ 87.5 million in 2020 , a significant decrease from $ 214.3 million in 2019. the decrease is mainly due to lower estimated taxable income for 2020 compared to 2019 and the utilization of tax overpayments for the 2019 tax year that reduced taxes paid in 2020 . ​ investing activities ​ net cash used in investing activities of $ 188.4 million in 2020 decreased significantly from $ 419.1 million used in 2019 , mainly due to $ 170.9 million less cash used to fund our acquisitions in 2020 compared to 2019 and decreased capital expenditures .
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 Suspicious Activity Report : as of december 31 , 2020 , we had $ 1.46 billion available for borrowing on our revolving credit facility with interest on borrowings at variable rates based on libor . we currently do not use derivative financial instruments to manage the potential impact of interest rate risk . accordingly , our interest expense for any particular period will fluctuate based on libor and other variable interest rates if we borrow on our revolving credit facility . ​ on july 27 , 2017 , the financial conduct authority ( the authority that regulates libor ) announced that it intends to stop compelling banks to submit rates for the calculation of libor . on november 30 , 2020 , ice benchmark administration , the administrator of usd libor announced that it intended to consult on ceasing publication of one-week and two-month usd libor by december 31 , 2021 and does not intend to cease publication of the remaining usd 26 libor tenors until june 30 , 2023 , providing additional time for existing contracts that are dependent on libor to mature . financial industry working groups are developing replacement rates and methodologies to transition existing agreements that depend on libor as a reference rate ; however , we can provide no assurance that market-accepted rates and transition methodologies will be available and finalized at the time of libor cessation . if clear market standards and transition methodologies have not developed by the time libor becomes unavailable , we may have difficulty reaching agreement on acceptable replacement rates under our revolving credit facility . if we are unable to negotiate replacement rates on favorable terms , it could have a material adverse effect on our earnings and cash flows . ​ item 1b . unresolved staff comment s ​ none . ​ item 2. propertie s ​ as of december 31 , 2020 , we operated approximately 300 metals service center processing and distribution facilities in 40 states in the u.s. and in 13 other countries , and our corporate headquarters . in the opinion of management , all of our service center facilities are in good or excellent condition and are adequate for our existing operations . these facilities currently operate at about 50-60 % of capacity based upon a 24-hour seven-day week , with each location averaging approximately two shifts operating at full capacity for a five-day work week . we have the ability to increase our operating capacity significantly without further investment in facilities or equipment if demand levels increase . ​ we leased 83 of the approximately 300 processing and distribution facilities that we maintained as of december 31 , 2020. in addition , we have ground leases and other leased spaces , such as depots , sales offices and storage , totaling 5.6 million square feet . total square footage on all company-owned properties is approximately 29.3 million and represents approximately 84 % of the total square footage of our operating facilities . in addition , we lease our corporate headquarters in los angeles , california . our leases of facilities and other spaces expire at various times through 2045 and our ground leases expire at various times through 2068. the aggregate monthly rent amount for these properties is approximately $ 2.4 million . ​ item 3. legal proceeding s ​ the information contained under the captions “ legal matters ” and “ environmental contingencies ” in note 16 — “ commitments and contingencies ” of part ii , item 8 “ financial statements and supplementary data ” is incorporated by reference herein . ​ item 4. mine safety disclosure s ​ not applicable . ​ part i i ​ item 5. market for registrant 's common equity , related stockholder matters and issuer purchases of equity securities ​ our common stock is owned by 173 stockholders of record as of february 19 , 2021. our common stock has traded for the past 27 years on the nyse under the symbol “ rs ” and was first traded september 16 , 1994. our stockholders of record exclude those stockholders whose shares were held for them in street name through banks , brokers or other nominee accounts . ​ we have paid quarterly cash dividends on our common stock for 61 consecutive years and have never reduced or suspended our regular quarterly dividend . in february 2021 , our board of directors increased the regular quarterly dividend amount 10.0 % to $ 0.6875 per share . this recent increase is the 28 th increase in our dividend since our ipo in 1994. further increases in the quarterly dividend rate will be evaluated by the board based on conditions then existing , including our earnings , cash flows , financial condition and capital requirements , or other factors the board may deem relevant . we expect to continue to declare and pay dividends in the future , if earnings are available to pay dividends , but we also intend to continue to retain a portion of earnings for reinvestment in our operations and expansion of our businesses . we can not assure you that any dividends will be paid in the future or that , if paid , the dividends will be at the same amount 27 or frequency as paid in the past . our payment of dividends in the future will depend on business conditions , our financial condition , earnings , liquidity and capital requirements and other factors . ​ on october 23 , 2018 , our board of directors amended our share repurchase plan increasing by 5,000,000 shares the total number of shares authorized to be repurchased and extending the duration of the program through december 31 , 2021. our share repurchase plan does not obligate us to acquire any specific number of shares . story_separator_special_tag we have consolidated the financial results of fpc since august 1 , 2008 when we acquired feralloy corporation as part of our acquisition of pna group , inc. ​ on october 23 , 2018 , we purchased the remaining 40 % noncontrolling interest of acero prime , a toll processor in mexico , which increased our ownership from 60 % to 100 % . acero prime , headquartered in san luis potosi , has four toll processing locations . acero prime performs metal processing services such as slitting , multi-blanking and oxy-fuel cutting , as well as storage and supply-chain management for a variety of different industries including automotive , home appliance , lighting , hvac , machinery and heavy equipment . we have consolidated the financial results of acero prime since october 1 , 2014 when we acquired a controlling interest . ​ internal growth activities ​ we continued to maintain our focus on internal growth by opening new facilities , building or expanding existing facilities , adding and upgrading processing equipment , improving the safety of our operations and enhancing the working environments of our employees . our capital expenditure budgets have been at historically high levels in recent years . our 2021 capital expenditure budget is $ 245 million ; however we expect our 2021 actual capital expenditures will be higher due to additional spending on projects carried forward from our 2020 budget . ​ we have made significant capital expenditure investments that have totaled nearly $ 1 billion over the past five years . in 2020 , we performed value-added processing on 49 % of the orders we shipped , significantly higher than our historical 33 rate of approximately 40 % . these significant investments have expanded our value added processing capabilities that our managers in the field have successfully leveraged to increase the percentage of our orders with value added processing , which has significantly contributed to our record gross profit margin of 31.5 % that is 640 basis points higher than our gross profit of 25.1 % in 2014 . ​ we believe that our ability to finance our investments in processing equipment and facilities provides a competitive advantage for us , as we can provide our customers with a higher quality product and expand our services to them , which we believe many of our competitors do not have the ability to provide . ​ results of operations ​ the following table sets forth certain income statement data for each of the last three years ended december 31 , 2020 ( dollars are shown in millions and certain percentages may not calculate due to rounding ) : ​ replace_table_token_9_th ( 1 ) gross profit , calculated as net sales less cost of sales , and gross profit margin , calculated as gross profit divided by net sales , are non-gaap financial measures as they exclude depreciation and amortization expense associated with the corresponding sales . about half of our orders are basic distribution with no processing services performed . for the remainder of our sales orders , we perform “ first-stage ” processing , which is generally not labor intensive as we are simply cutting the metal to size . because of this , the amount of related labor and overhead , including depreciation and amortization , is not significant and is excluded from cost of sales . therefore , our cost of sales is substantially comprised of the cost of the material we sell . we use gross profit and gross profit margin as shown above as measures of operating performance . gross profit and gross profit margin are important operating and financial measures as their fluctuations can have a significant impact on our earnings . gross profit and gross profit margin , as presented , are not necessarily comparable with similarly titled measures for other companies . ​ ( 2 ) sg & a includes $ 0.9 million and $ 19.1 million of gains related to the sale of non-core property , plant and equipment in 2019 and 2018 , respectively . ​ ( 3 ) see “ expenses ” below for discussion of our impairment charges . ​ ​ 34 year ended december 31 , 2020 compared to year ended december 31 , 2019 ​ net sales ​ replace_table_token_10_th ​ tons sold and average selling price per ton sold amounts exclude our toll processing sales . same-store amounts exclude the results of our 2019 acquisition . ​ our net sales were lower in 2020 compared to 2019 due to lower tons sold and a lower average selling price per ton sold . ​ our same-store tons sold decreased 10.9 % in 2020 compared to 2019 , despite one additional shipping day in 2020 , due to the significant decline in demand for the products we sell as a result of covid-19 . ​ demand for the products we sell was lower in 2020 compared to 2019 for nearly all the end markets we serve as a result of the adverse impacts of covid-19 . ​ demand for the toll processing services we provide to the automotive market fell sharply in the first half of 2020 , declining 28.6 % , but rebounded significantly in the second half of 2020 as many automotive oems and steel and aluminum mills supplying the automotive industry re-opened in the third quarter of 2020 following covid-19-related shutdowns , with our total toll processing volumes down only 15.7 % in 2020 compared to 2019 and returning to pre-pandemic levels at the end of 2020. demand in nonresidential construction ( including infrastructure ) , our largest end market served , and heavy industry ( agricultural , construction and mining equipment ) markets were lower in 2020 compared to 2019 , with demand improving at the end of 2020. in the aerospace end market , demand in the military , defense and space portions of the market was strong in 2020 ; however , commercial aerospace demand decreased

