Date,Open,High,Low,Close,Volume,OpenInterest
20120801,569.8,569.9,564.5,565,59,51
20120802,565.1,569.9,565.1,566.8,5,82
20120803,566.2,568,558.7,559.8,91,117
20120804,562.2,562.2,558.3,559.2,58,125
20120806,557.6,560.2,556.1,559,39,134
20120807,557.5,558.9,552,553,67,125
20120808,550,553.2,543.8,544.7,78,198
20120809,548.2,548.2,542,544.8,125,202
20120810,544.2,550.6,540,550.1,99,204
20120811,554.8,554.8,552.3,553.1,74,211
20120813,548.9,549.9,545.5,548.6,55,228
20120814,545,547.5,543.7,546.7,81,448
20120816,550.7,554.4,549.1,553.2,410,548
20120817,554,557.5,554,555.9,191,625
20120818,556,556.7,554.4,554.6,102,626
20120821,558.9,559.4,555.5,559,98,643
20120822,565.5,568.5,564,566.9,278,657
20120823,569,571.1,566.4,567.7,236,653
20120824,569.6,572,568.2,570.2,144,701
20120825,571,574,570.8,572.9,167,0