Please answer the given financial question based on the context.
Context: 2mar201707015999 ( c ) in october 2016 , our accelerated share repurchase ( 2018 2018asr 2019 2019 ) agreement concluded and we received an additional 44 thousand shares of our common stock . shares purchased pursuant to the asr agreement are presented in the table above in the periods in which they were received . performance graph the following graph compares the performance of our common stock with that of the s&p 500 index and the s&p 500 healthcare equipment index . the cumulative total return listed below assumes an initial investment of $ 100 at the market close on december 30 , 2011 and reinvestment of dividends . comparison of 5 year cumulative total return 2011 2012 2016201520142013 edwards lifesciences corporation s&p 500 s&p 500 healthcare equipment index december 31 .
|total cumulative return|2012|2013|2014|2015|2016|
|edwards lifesciences|$ 127.54|$ 93.01|$ 180.17|$ 223.42|$ 265.06|
|s&p 500|116.00|153.58|174.60|177.01|198.18|
|s&p 500 healthcare equipment index|117.42|150.28|181.96|194.37|207.46|
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Question: what was the difference in cumulative percentage returns between edwards lifesciences and the s&p 500 for the five years ended 2016?
Answer:
0.6688