Please answer the given financial question based on the context.
Context: performance graph the graph below compares the cumulative total shareholder return on pmi's common stock with the cumulative total return for the same period of pmi's peer group and the s&p 500 index . the graph assumes the investment of $ 100 as of december 31 , 2013 , in pmi common stock ( at prices quoted on the new york stock exchange ) and each of the indices as of the market close and reinvestment of dividends on a quarterly basis . date pmi pmi peer group ( 1 ) s&p 500 index .
|date|pmi|pmi peer group ( 1 )|s&p 500 index|
|december 31 2013|$ 100.00|$ 100.00|$ 100.00|
|december 31 2014|$ 97.90|$ 107.80|$ 113.70|
|december 31 2015|$ 111.00|$ 116.80|$ 115.30|
|december 31 2016|$ 120.50|$ 118.40|$ 129.00|
|december 31 2017|$ 144.50|$ 140.50|$ 157.20|
|december 31 2018|$ 96.50|$ 127.70|$ 150.30|
( 1 ) the pmi peer group presented in this graph is the same as that used in the prior year . the pmi peer group was established based on a review of four characteristics : global presence ; a focus on consumer products ; and net revenues and a market capitalization of a similar size to those of pmi . the review also considered the primary international tobacco companies . as a result of this review , the following companies constitute the pmi peer group : altria group , inc. , anheuser-busch inbev sa/nv , british american tobacco p.l.c. , the coca-cola company , colgate-palmolive co. , diageo plc , heineken n.v. , imperial brands plc , japan tobacco inc. , johnson & johnson , kimberly-clark corporation , the kraft-heinz company , mcdonald's corp. , mondel z international , inc. , nestl e9 s.a. , pepsico , inc. , the procter & gamble company , roche holding ag , and unilever nv and plc . note : figures are rounded to the nearest $ 0.10. .
Question: what was the difference in percentage return for pmi common stock compared to the s&p 500 index for the five years ended 2018?


Answer: The answer is:0.538