edwards lifesciences corporation notes to consolidated financial statements ( continued ) 12 .
employee benefit plans ( continued ) equity and debt securities are valued at fair value based on quoted market prices reported on the active markets on which the individual securities are traded .
the insurance contracts are valued at the cash surrender value of the contracts , which is deemed to approximate its fair value .
the following benefit payments , which reflect expected future service , as appropriate , at december 31 , 2016 , are expected to be paid ( in millions ) : .

2017
$4.5
2018
4.0
2019
4.0
2020
4.6
2021
4.5
2021-2025
44.6

as of december 31 , 2016 , expected employer contributions for 2017 are $ 6.1 million .
defined contribution plans the company 2019s employees in the united states and puerto rico are eligible to participate in a qualified defined contribution plan .
in the united states , participants may contribute up to 25% ( 25 % ) of their eligible compensation ( subject to tax code limitation ) to the plan .
edwards lifesciences matches the first 3% ( 3 % ) of the participant 2019s annual eligible compensation contributed to the plan on a dollar-for-dollar basis .
edwards lifesciences matches the next 2% ( 2 % ) of the participant 2019s annual eligible compensation to the plan on a 50% ( 50 % ) basis .
in puerto rico , participants may contribute up to 25% ( 25 % ) of their annual compensation ( subject to tax code limitation ) to the plan .
edwards lifesciences matches the first 4% ( 4 % ) of participant 2019s annual eligible compensation contributed to the plan on a 50% ( 50 % ) basis .
the company also provides a 2% ( 2 % ) profit sharing contribution calculated on eligible earnings for each employee .
matching contributions relating to edwards lifesciences employees were $ 17.3 million , $ 15.3 million , and $ 12.8 million in 2016 , 2015 , and 2014 , respectively .
the company also has nonqualified deferred compensation plans for a select group of employees .
the plans provide eligible participants the opportunity to defer eligible compensation to future dates specified by the participant with a return based on investment alternatives selected by the participant .
the amount accrued under these nonqualified plans was $ 46.7 million and $ 35.5 million at december 31 , 2016 and 2015 , respectively .
13 .
common stock treasury stock in july 2014 , the board of directors approved a stock repurchase program authorizing the company to purchase up to $ 750.0 million of the company 2019s common stock .
in november 2016 , the board of directors approved a new stock repurchase program providing for an additional $ 1.0 billion of repurchases of our common stock .
the repurchase programs do not have an expiration date .
stock repurchased under these programs may be used to offset obligations under the company 2019s employee stock-based benefit programs and stock-based business acquisitions , and will reduce the total shares outstanding .
during 2016 , 2015 , and 2014 , the company repurchased 7.3 million , 2.6 million , and 4.4 million shares , respectively , at an aggregate cost of $ 662.3 million , $ 280.1 million , and $ 300.9 million , respectively , including .

Question: Analyse this data from a financial earnings document. what was the percent change in matching contributions between 2014 and 2016?
Choices:
-8.3
0.35156
4.5
0
2.84444
Correct choice index: 1