Please answer the given financial question based on the context.
Context: leveraged performance units during the year ended may 31 , 2015 , certain executives were granted performance units that we refer to as 201cleveraged performance units , 201d or 201clpus . 201d lpus contain a market condition based on our relative stock price growth over a three-year performance period . the lpus contain a minimum threshold performance which , if not met , would result in no payout . the lpus also contain a maximum award opportunity set as a fixed dollar and fixed number of shares . after the three-year performance period , which concluded in october 2017 , one-third of the earned units converted to unrestricted common stock . the remaining two-thirds converted to restricted stock that will vest in equal installments on each of the first two anniversaries of the conversion date . we recognize share-based compensation expense based on the grant date fair value of the lpus , as determined by use of a monte carlo model , on a straight-line basis over the requisite service period for each separately vesting portion of the lpu award . the following table summarizes the changes in unvested restricted stock and performance awards for the year ended december 31 , 2017 , the 2016 fiscal transition period and for the years ended may 31 , 2016 and 2015 : shares weighted-average grant-date fair value ( in thousands ) .
||shares ( in thousands )|weighted-averagegrant-datefair value|
|unvested at may 31 2014|1754|$ 22.72|
|granted|954|36.21|
|vested|-648 ( 648 )|23.17|
|forfeited|-212 ( 212 )|27.03|
|unvested at may 31 2015|1848|28.97|
|granted|461|57.04|
|vested|-633 ( 633 )|27.55|
|forfeited|-70 ( 70 )|34.69|
|unvested at may 31 2016|1606|37.25|
|granted|348|74.26|
|vested|-639 ( 639 )|31.38|
|forfeited|-52 ( 52 )|45.27|
|unvested at december 31 2016|1263|49.55|
|granted|899|79.79|
|vested|-858 ( 858 )|39.26|
|forfeited|-78 ( 78 )|59.56|
|unvested at december 31 2017|1226|$ 78.29|
the total fair value of restricted stock and performance awards vested was $ 33.7 million for the year ended december 31 , 2017 , $ 20.0 million for the 2016 fiscal transition period and $ 17.4 million and $ 15.0 million , respectively , for the years ended may 31 , 2016 and 2015 . for restricted stock and performance awards , we recognized compensation expense of $ 35.2 million for the year ended december 31 , 2017 , $ 17.2 million for the 2016 fiscal transition period and $ 28.8 million and $ 19.8 million , respectively , for the years ended may 31 , 2016 and 2015 . as of december 31 , 2017 , there was $ 46.1 million of unrecognized compensation expense related to unvested restricted stock and performance awards that we expect to recognize over a weighted-average period of 1.8 years . our restricted stock and performance award plans provide for accelerated vesting under certain conditions . stock options stock options are granted with an exercise price equal to 100% ( 100 % ) of fair market value of our common stock on the date of grant and have a term of ten years . stock options granted before the year ended may 31 , 2015 vest in equal installments on each of the first four anniversaries of the grant date . stock options granted during the year ended may 31 , 2015 and thereafter vest in equal installments on each of the first three anniversaries of the grant date . our stock option plans provide for accelerated vesting under certain conditions . global payments inc . | 2017 form 10-k annual report 2013 91 .
Question: what was the change in millions in the total fair value of restricted stock and performance awards vested from 2016 to 2017?
Answer:
13.7