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 .

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

Question: what is the average of total fair value of time-vested restricted stock units vested during 2009 , 2008 and 2007?
Answer: 19867
Calculation: add(29535, 26674), add(#0, 3392), divide(#1, const_3)