Read the following texts and table with financial data from an S&P 500 earnings report carefully.Based on the question-answer history (if provided), answer the last question. The answer may require mathematical calculation based on the data provided.

Text: 28 2014 annual report performance graph the following chart presents a comparison for the five-year period ended june 30 , 2014 , of the market performance of the company 2019s common stock with the s & p 500 index and an index of peer companies selected by the company : comparison of 5 year cumulative total return among jack henry & associates , inc. , the s&p 500 index , and a peer group the following information depicts a line graph with the following values: . <table class='wikitable'><tr><td>1</td><td>-</td><td>2009</td><td>2010</td><td>2011</td><td>2012</td><td>2013</td><td>2014</td></tr><tr><td>2</td><td>jkhy</td><td>100.00</td><td>116.85</td><td>148.92</td><td>173.67</td><td>240.25</td><td>307.57</td></tr><tr><td>3</td><td>old peer group</td><td>100.00</td><td>112.45</td><td>150.77</td><td>176.12</td><td>220.42</td><td>275.73</td></tr><tr><td>4</td><td>new peer group</td><td>100.00</td><td>115.50</td><td>159.31</td><td>171.86</td><td>198.72</td><td>273.95</td></tr><tr><td>5</td><td>s & p 500</td><td>100.00</td><td>114.43</td><td>149.55</td><td>157.70</td><td>190.18</td><td>236.98</td></tr></table> this comparison assumes $ 100 was invested on june 30 , 2009 , and assumes reinvestments of dividends . total returns are calculated according to market capitalization of peer group members at the beginning of each period . peer companies selected are in the business of providing specialized computer software , hardware and related services to financial institutions and other businesses . in fiscal 2014 , we changed our peer group of companies used for this analysis to maintain alignment with peer companies selected by our compensation committee for use in determining compensation for executive management . companies in the new peer group are aci worldwide , inc. , bottomline technology , inc. , broadridge financial solutions , cardtronics , inc. , convergys corp. , corelogic , inc. , dst systems , inc. , euronet worldwide , inc. , fair isaac corp. , fidelity national information services , inc. , fiserv , inc. , global payments , inc. , heartland payment systems , inc. , micros systems , inc. , moneygram international , inc. , ss&c technologies holdings , inc. , total systems services , inc. , tyler technologies , inc. , verifone systems , inc. , and wex , inc. . companies in the old peer group are aci worldwide , inc. , bottomline technology , inc. , cerner corp. , dst systems , inc. , euronet worldwide , inc. , fair isaac corp. , fidelity national information services , inc. , fiserv , inc. , sei investments company , telecommunications systems , inc. , and tyler technologies corp. .
Question: what was the annual performance of the jkhy stock in 2010?
Answer: 116.85
Question: and what was it in 2009?

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