to determine stock-based compensation expense , the grant- date fair value is applied to the options granted with a reduction for estimated forfeitures .we recognize compensation expense for stock options on a straight-line basis over the pro rata vesting period .at december 31 , 2011 and 2010 , options for 12337000 and 13397000 shares of common stock were exercisable at a weighted-average price of $ 106.08 and $ 118.21 , respectively .the total intrinsic value of options exercised during 2012 , 2011 and 2010 was $ 37 million , $ 4 million and $ 5 million .cash received from option exercises under all incentive plans for 2012 , 2011 and 2010 was approximately $ 118 million , $ 41 million and $ 15 million , respectively .the actual tax benefit realized for tax deduction purposes from option exercises under all incentive plans for 2012 , 2011 and 2010 was approximately $ 41 million , $ 14 million and $ 5 million , respectively .there were no options granted in excess of market value in 2012 , 2011 or 2010 .shares of common stock available during the next year for the granting of options and other awards under the incentive plans were 29192854 at december 31 , 2012 .total shares of pnc common stock authorized for future issuance under equity compensation plans totaled 30537674 shares at december 31 , 2012 , which includes shares available for issuance under the incentive plans and the employee stock purchase plan ( espp ) as described below .during 2012 , we issued approximately 1.7 million shares from treasury stock in connection with stock option exercise activity .as with past exercise activity , we currently intend to utilize primarily treasury stock for any future stock option exercises .awards granted to non-employee directors in 2012 , 2011 and 2010 include 25620 , 27090 and 29040 deferred stock units , respectively , awarded under the outside directors deferred stock unit plan .a deferred stock unit is a phantom share of our common stock , which requires liability accounting treatment until such awards are paid to the participants as cash .as there are no vesting or service requirements on these awards , total compensation expense is recognized in full on awarded deferred stock units on the date of grant .incentive/performance unit share awards and restricted stock/unit awards the fair value of nonvested incentive/performance unit share awards and restricted stock/unit awards is initially determined based on prices not less than the market value of our common stock price on the date of grant .the value of certain incentive/ performance unit share awards is subsequently remeasured based on the achievement of one or more financial and other performance goals generally over a three-year period .the personnel and compensation committee of the board of directors approves the final award payout with respect to incentive/performance unit share awards .restricted stock/unit awards have various vesting periods generally ranging from 36 months to 60 months .beginning in 2012 , we incorporated several risk-related performance changes to certain incentive compensation programs .in addition to achieving certain financial performance metrics relative to our peers , the final payout amount will be subject to a negative adjustment if pnc fails to meet certain risk-related performance metrics as specified in the award agreement .however , the p&cc has the discretion to reduce any or all of this negative adjustment under certain circumstances .these awards have a three-year performance period and are payable in either stock or a combination of stock and cash .additionally , performance-based restricted share units were granted in 2012 to certain of our executives in lieu of stock options , with generally the same terms and conditions as the 2011 awards of the same .the weighted-average grant-date fair value of incentive/ performance unit share awards and restricted stock/unit awards granted in 2012 , 2011 and 2010 was $ 60.68 , $ 63.25 and $ 54.59 per share , respectively .we recognize compensation expense for such awards ratably over the corresponding vesting and/or performance periods for each type of program .table 130 : nonvested incentive/performance unit share awards and restricted stock/unit awards 2013 rollforward shares in thousands nonvested incentive/ performance unit shares weighted- average date fair nonvested restricted stock/ shares weighted- average date fair . shares in thousands december 31 2011 | nonvested incentive/ performance unit shares 830 | weighted-averagegrantdate fairvalue $ 61.68 | nonvested restricted stock/ unit shares 2512 | weighted-averagegrantdate fairvalue $ 54.87
granted                              | 465                                              | 60.70                                       | 1534                                         | 60.67                                      
vested                               | -100 ( 100 )                                     | 64.21                                       | -831 ( 831 )                                 | 45.47                                      
forfeited                            | -76 ( 76 )                                       | 60.27                                       | -154 ( 154 )                                 | 60.51                                      
december 31 2012                     | 1119                                             | $ 61.14                                     | 3061                                         | $ 60.04                                     in the chart above , the unit shares and related weighted- average grant-date fair value of the incentive/performance awards exclude the effect of dividends on the underlying shares , as those dividends will be paid in cash .at december 31 , 2012 , there was $ 86 million of unrecognized deferred compensation expense related to nonvested share- based compensation arrangements granted under the incentive plans .this cost is expected to be recognized as expense over a period of no longer than five years .the total fair value of incentive/performance unit share and restricted stock/unit awards vested during 2012 , 2011 and 2010 was approximately $ 55 million , $ 52 million and $ 39 million , respectively .the pnc financial services group , inc .2013 form 10-k 203 .
Question: what was the weighted-average grant-date fair value of incentive/ performance unit share awards and restricted stock/unit awards granted in 2012?
Steps: Ask for number 60.68
Answer: 60.68
Question: and what was it for 2011?
Steps: Ask for number 63.25
Answer: 63.25
Question: what was, then, the total of that fair value for both years combined?
Steps: add(60.68, 63.25)
Answer: 123.93
Question: what was the the weighted-average grant-date fair value of incentive/ performance unit share awards and restricted stock/unit awards granted in 2010?
Steps: Ask for number 54.59
Answer: 54.59
Question: including, then, 2010, what then becomes that total of that fair value for the three years?
Steps: add(A0, 54.59)
Answer: 178.52
Question: and what is the average of this fair value between those three years?

Read the following texts and table with financial data from an S&P 500 earnings report carefully.Based on the question-answer history (if provided), answer the last question. The answer may require mathematical calculation based on the data provided.
to determine stock-based compensation expense , the grant- date fair value is applied to the options granted with a reduction for estimated forfeitures .we recognize compensation expense for stock options on a straight-line basis over the pro rata vesting period .at december 31 , 2011 and 2010 , options for 12337000 and 13397000 shares of common stock were exercisable at a weighted-average price of $ 106.08 and $ 118.21 , respectively .the total intrinsic value of options exercised during 2012 , 2011 and 2010 was $ 37 million , $ 4 million and $ 5 million .cash received from option exercises under all incentive plans for 2012 , 2011 and 2010 was approximately $ 118 million , $ 41 million and $ 15 million , respectively .the actual tax benefit realized for tax deduction purposes from option exercises under all incentive plans for 2012 , 2011 and 2010 was approximately $ 41 million , $ 14 million and $ 5 million , respectively .there were no options granted in excess of market value in 2012 , 2011 or 2010 .shares of common stock available during the next year for the granting of options and other awards under the incentive plans were 29192854 at december 31 , 2012 .total shares of pnc common stock authorized for future issuance under equity compensation plans totaled 30537674 shares at december 31 , 2012 , which includes shares available for issuance under the incentive plans and the employee stock purchase plan ( espp ) as described below .during 2012 , we issued approximately 1.7 million shares from treasury stock in connection with stock option exercise activity .as with past exercise activity , we currently intend to utilize primarily treasury stock for any future stock option exercises .awards granted to non-employee directors in 2012 , 2011 and 2010 include 25620 , 27090 and 29040 deferred stock units , respectively , awarded under the outside directors deferred stock unit plan .a deferred stock unit is a phantom share of our common stock , which requires liability accounting treatment until such awards are paid to the participants as cash .as there are no vesting or service requirements on these awards , total compensation expense is recognized in full on awarded deferred stock units on the date of grant .incentive/performance unit share awards and restricted stock/unit awards the fair value of nonvested incentive/performance unit share awards and restricted stock/unit awards is initially determined based on prices not less than the market value of our common stock price on the date of grant .the value of certain incentive/ performance unit share awards is subsequently remeasured based on the achievement of one or more financial and other performance goals generally over a three-year period .the personnel and compensation committee of the board of directors approves the final award payout with respect to incentive/performance unit share awards .restricted stock/unit awards have various vesting periods generally ranging from 36 months to 60 months .beginning in 2012 , we incorporated several risk-related performance changes to certain incentive compensation programs .in addition to achieving certain financial performance metrics relative to our peers , the final payout amount will be subject to a negative adjustment if pnc fails to meet certain risk-related performance metrics as specified in the award agreement .however , the p&cc has the discretion to reduce any or all of this negative adjustment under certain circumstances .these awards have a three-year performance period and are payable in either stock or a combination of stock and cash .additionally , performance-based restricted share units were granted in 2012 to certain of our executives in lieu of stock options , with generally the same terms and conditions as the 2011 awards of the same .the weighted-average grant-date fair value of incentive/ performance unit share awards and restricted stock/unit awards granted in 2012 , 2011 and 2010 was $ 60.68 , $ 63.25 and $ 54.59 per share , respectively .we recognize compensation expense for such awards ratably over the corresponding vesting and/or performance periods for each type of program .table 130 : nonvested incentive/performance unit share awards and restricted stock/unit awards 2013 rollforward shares in thousands nonvested incentive/ performance unit shares weighted- average date fair nonvested restricted stock/ shares weighted- average date fair . shares in thousands december 31 2011 | nonvested incentive/ performance unit shares 830 | weighted-averagegrantdate fairvalue $ 61.68 | nonvested restricted stock/ unit shares 2512 | weighted-averagegrantdate fairvalue $ 54.87
granted                              | 465                                              | 60.70                                       | 1534                                         | 60.67                                      
vested                               | -100 ( 100 )                                     | 64.21                                       | -831 ( 831 )                                 | 45.47                                      
forfeited                            | -76 ( 76 )                                       | 60.27                                       | -154 ( 154 )                                 | 60.51                                      
december 31 2012                     | 1119                                             | $ 61.14                                     | 3061                                         | $ 60.04                                     in the chart above , the unit shares and related weighted- average grant-date fair value of the incentive/performance awards exclude the effect of dividends on the underlying shares , as those dividends will be paid in cash .at december 31 , 2012 , there was $ 86 million of unrecognized deferred compensation expense related to nonvested share- based compensation arrangements granted under the incentive plans .this cost is expected to be recognized as expense over a period of no longer than five years .the total fair value of incentive/performance unit share and restricted stock/unit awards vested during 2012 , 2011 and 2010 was approximately $ 55 million , $ 52 million and $ 39 million , respectively .the pnc financial services group , inc .2013 form 10-k 203 .
Question: what was the weighted-average grant-date fair value of incentive/ performance unit share awards and restricted stock/unit awards granted in 2012?
Steps: Ask for number 60.68
Answer: 60.68
Question: and what was it for 2011?
Steps: Ask for number 63.25
Answer: 63.25
Question: what was, then, the total of that fair value for both years combined?
Steps: add(60.68, 63.25)
Answer: 123.93
Question: what was the the weighted-average grant-date fair value of incentive/ performance unit share awards and restricted stock/unit awards granted in 2010?
Steps: Ask for number 54.59
Answer: 54.59
Question: including, then, 2010, what then becomes that total of that fair value for the three years?
Steps: add(A0, 54.59)
Answer: 178.52
Question: and what is the average of this fair value between those three years?
