the weighted average grant date fair value of performance-based restricted stock units granted during the years 2008 and 2007 was $ 84.33 and $ 71.72 , respectively . the total fair value of performance-based restricted stock units vested during 2009 , 2008 and 2007 was $ 33712 , $ 49387 and $ 9181 , respectively . at september 30 , 2009 , the weighted average remaining vesting term of performance-based restricted stock units is 1.28 years . time-vested restricted stock units time-vested restricted stock units generally cliff vest three years after the date of grant , except for certain key executives of the company , including the executive officers , for which such units generally vest one year following the employee 2019s retirement . the related share-based compensation expense is recorded over the requisite service period , which is the vesting period or in the case of certain key executives is based on retirement eligibility . the fair value of all time-vested restricted stock units is based on the market value of the company 2019s stock on the date of grant . a summary of time-vested restricted stock units outstanding as of september 30 , 2009 , and changes during the year then ended is as follows : weighted average grant date fair value .

stock units: balance at october 1: 1570329
granted: 618679
distributed: -316839
forfeited or canceled: -165211
balance at september 30: 1706958
expected to vest at september 30: 1536262
weighted average grant date fair value: balance at october 1: 69.35
granted: 62.96
distributed: 60.32
forfeited or canceled: 62.58
balance at september 30: 69.36
expected to vest at september 30: 69.36

the weighted average grant date fair value of time-vested restricted stock units granted during the years 2008 and 2007 was $ 84.42 and $ 72.20 , respectively . the total fair value of time-vested restricted stock units vested during 2009 , 2008 and 2007 was $ 29535 , $ 26674 and $ 3392 , respectively . at september 30 , 2009 , the weighted average remaining vesting term of the time-vested restricted stock units is 1.71 years . the amount of unrecognized compensation expense for all non-vested share-based awards as of september 30 , 2009 , is approximately $ 97034 , which is expected to be recognized over a weighted-average remaining life of approximately 2.02 years . at september 30 , 2009 , 4295402 shares were authorized for future grants under the 2004 plan . the company has a policy of satisfying share-based payments through either open market purchases or shares held in treasury . at september 30 , 2009 , the company has sufficient shares held in treasury to satisfy these payments in 2010 . other stock plans the company has a stock award plan , which allows for grants of common shares to certain key employees . distribution of 25% ( 25 % ) or more of each award is deferred until after retirement or involuntary termination , upon which the deferred portion of the award is distributable in five equal annual installments . the balance of the award is distributable over five years from the grant date , subject to certain conditions . in february 2004 , this plan was terminated with respect to future grants upon the adoption of the 2004 plan . at september 30 , 2009 and 2008 , awards for 114197 and 161145 shares , respectively , were outstanding . becton , dickinson and company notes to consolidated financial statements 2014 ( continued ) .

Questions:
what is the sum of the total fair value of time-vested restricted stock units vested in 2008 and 2009?
what was the number for 2007?
what is the total including 2007?
what is the average per year?

Answers:
56209
3392
59601
19867