pre_text: five-year stock performance graph the graph below illustrates the cumulative total shareholder return on snap-on common stock since december 31 , 2007 , assuming that dividends were reinvested . the graph compares snap-on 2019s performance to that of the standard & poor 2019s 500 stock index ( 201cs&p 500 201d ) and a peer group . snap-on incorporated total shareholder return ( 1 ) fiscal year ended ( 2 ) snap-on incorporated peer group ( 3 ) s&p 500 .
post_text: ( 1 ) assumes $ 100 was invested on december 31 , 2007 , and that dividends were reinvested quarterly . ( 2 ) the company's fiscal year ends on the saturday that is on or nearest to december 31 of each year ; for ease of calculation , the fiscal year end is assumed to be december 31 . ( 3 ) the peer group consists of : stanley black & decker , inc. , danaher corporation , emerson electric co. , genuine parts company , newell rubbermaid inc. , pentair ltd. , spx corporation and w.w . grainger , inc . cooper industries plc , a former member of the peer group , was removed , as it was acquired by a larger , non-comparable company in 2012 . 2012 annual report 23 snap-on incorporated peer group s&p 500 2007 2008 201120102009 2012 .
table: Fiscal Year Ended<sup>(2)</sup> Snap-onIncorporated Peer Group<sup>(3)</sup> S&P 500
table: December 31, 2007 $100.00 $100.00 $100.00
table: December 31, 2008 83.66 66.15 63.00
table: December 31, 2009 93.20 84.12 79.67
table: December 31, 2010 128.21 112.02 91.67
table: December 31, 2011 117.47 109.70 93.61
table: December 31, 2012 187.26 129.00 108.59
question: Analyse this data from a financial earnings document. what is the roi of s&p 500 from 2007 to 2012?