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## ITEM 6. SELECTED FINANCIAL DATA 

The following table presents as of, and for the years ended, December 31, selected financial data related to the Company’s financial results for the last five fiscal years. The selected financial data should be read in conjunction with Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations and Item 8. Financial Statements and Supplementary Data. 

For information regarding historical exchange rates, please see Impact of Foreign Exchange on Earnings in Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations. 

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$^{(1)}$ These measures have no standardized meanings prescribed by accounting principles generally accepted in the United States of America ("GAAP") and, therefore, may not be comparable to similar measures presented by other companies. These measures are defined and reconciled in Non-GAAP Measures in Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations. 

$^{(2)}$ Current period amount is as reported in compliance with GAAP following the adoption of Accounting Standards Update ("ASU") 2016-02 under the cumulative effect adjustment transition approach, discussed further in Item 8. Financial Statements and Supplementary Data, Note 2 Accounting changes. The comparative periods' amounts have not been restated and continue to be reported under the accounting standards in effect for those periods. 

$^{(3)}$ Operating ratio is defined as operating expenses divided by revenues. 

$^{(4)}$ Dividend payout ratio is defined as dividends declared per share divided by Diluted EPS. 

$^{(5)}$ Long-term debt to Net income ratio is defined as long-term debt, including long-term debt maturing within one year, divided by Net income. 

