there were no options granted in excess of market value in 2011 , 2010 or 2009 .shares of common stock available during the next year for the granting of options and other awards under the incentive plans were 33775543 at december 31 , 2011 .total shares of pnc common stock authorized for future issuance under equity compensation plans totaled 35304422 shares at december 31 , 2011 , which includes shares available for issuance under the incentive plans and the employee stock purchase plan ( espp ) as described below .during 2011 , we issued 731336 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 2011 , 2010 and 2009 include 27090 , 29040 , and 39552 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 2011 , we incorporated two changes to certain awards under our existing long-term incentive compensation programs .first , for certain grants of incentive performance units , the future payout amount will be subject to a negative annual adjustment if pnc fails to meet certain risk-related performance metrics .this adjustment is in addition to the existing financial performance metrics relative to our peers .these grants have a three-year performance period and are payable in either stock or a combination of stock and cash .second , performance-based restricted share units ( performance rsus ) were granted in 2011 to certain of our executives in lieu of stock options .these performance rsus ( which are payable solely in stock ) have a service condition , an internal risk-related performance condition , and an external market condition .satisfaction of the performance condition is based on four independent one-year performance periods .the weighted-average grant-date fair value of incentive/ performance unit share awards and restricted stock/unit awards granted in 2011 , 2010 and 2009 was $ 63.25 , $ 54.59 and $ 41.16 per share , respectively .we recognize compensation expense for such awards ratably over the corresponding vesting and/or performance periods for each type of program .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 2010', 'nonvested incentive/ performance unit shares 363', 'weighted- average grant date fair value $ 56.40', 'nonvested restricted stock/ unit shares 2250', 'weighted- average grant date fair value $ 49.95'], ['granted', '623', '64.21', '1059', '62.68'], ['vested', '-156 ( 156 )', '59.54', '-706 ( 706 )', '51.27'], ['forfeited', '', '', '-91 ( 91 )', '52.24'], ['december 31 2011', '830', '$ 61.68', '2512', '$ 54.87']]
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 , 2011 , there was $ 61 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 2011 , 2010 and 2009 was approximately $ 52 million , $ 39 million and $ 47 million , respectively .liability awards we grant annually cash-payable restricted share units to certain executives .the grants were made primarily as part of an annual bonus incentive deferral plan .while there are time- based and service-related vesting criteria , there are no market or performance criteria associated with these awards .compensation expense recognized related to these awards was recorded in prior periods as part of annual cash bonus criteria .as of december 31 , 2011 , there were 753203 of these cash- payable restricted share units outstanding .174 the pnc financial services group , inc .2013 form 10-k .

Question: in 2011 , what percentage of common stocks were issued from treasury stock from stock option activity?
Answer: 2.1%