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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 | Nonvested Incentive/ Performance Unit Shares | Weighted-AverageGrantDate FairValue | Nonvested Restricted Stock/ Unit Shares | Weighted-AverageGrantDate FairValue |
| --------- | --------- | --------- | --------- | --------- |
| December 31, 2011 | 830 | $61.68 | 2,512 | $54.87 |
| Granted | 465 | 60.70 | 1,534 | 60.67 |
| Vested | (100) | 64.21 | (831) | 45.47 |
| Forfeited | (76) | 60.27 | (154) | 60.51 |
| December 31, 2012 | 1,119 | $61.14 | 3,061 | $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.
Please answer the following question with expressions if necessary.
and what is the average of this fair value between those three years?
assistant
add(60.68, 63.25), add(#0, 54.59), divide(#1, const_3)