pre_text: shareholder return performance presentation the graph presented below compares the cumulative total shareholder return on state street's common stock to the cumulative total return of the s&p 500 index , the s&p financial index and the kbw bank index over a five- year period . the cumulative total shareholder return assumes the investment of $ 100 in state street common stock and in each index on december 31 , 2008 at the closing price on the last trading day of 2008 , and also assumes reinvestment of common stock dividends . the s&p financial index is a publicly available measure of 81 of the standard & poor's 500 companies , representing 17 diversified financial services companies , 22 insurance companies , 19 real estate companies and 23 banking companies . the kbw bank index seeks to reflect the performance of banks and thrifts that are publicly traded in the u.s. , and is composed of 24 leading national money center and regional banks and thrifts. .
post_text: .
table: 2008 2009 2010 2011 2012 2013
table: State Street Corporation $100 $111 $118 $105 $125 $198
table: S&P 500 Index 100 126 146 149 172 228
table: S&P Financial Index 100 117 132 109 141 191
table: KBW Bank Index 100 98 121 93 122 168
question: Analyse this data from a financial earnings document. what is the roi of an investment in the state street corporation from 2008 to 2011?