Date,Open,High,Low,Close,Volume,OpenInterest 20120702,436.5,436.5,435.1,435.65,30,23 20120703,440.3,440.3,435.3,436.95,64,42 20120704,434.3,437.9,425,430.25,85,56 20120705,435,440.85,435,437.25,180,72 20120706,436.55,437.5,430.35,433.5,82,73 20120707,433.35,433.95,433.35,433.75,5,84 20120709,433.25,435.85,433.1,434.2,41,96 20120710,433.7,433.7,428.9,429.4,82,122 20120711,429,432.3,427.05,432.05,110,126 20120712,431.65,432.8,429.5,431.95,90,142 20120713,429.15,435.95,429.15,435.4,59,141 20120714,434.7,435.3,434.7,435.1,5,157 20120716,433.5,435.2,433.3,434.2,36,165 20120717,435,436.25,431.5,432.55,62,166 20120718,432.75,435.15,432.6,434.75,54,201 20120719,436,440.05,436,439.75,121,218 20120720,438.55,438.55,430,432.2,221,219 20120721,432,432,432,432,2,206 20120723,431,431.05,426,430.15,189,203 20120724,432.15,432.45,428.5,429.25,120,213 20120725,430.6,431.8,428.15,430.35,164,224 20120726,429.55,432.75,428.25,429.55,204,243 20120727,430.2,431.75,429.7,431.35,93,244 20120728,431,431.5,431,431.25,3,257 20120730,431.8,433.2,430.2,430.75,92,280 20120731,432.35,434.8,432,432.95,161,270 20120801,431.8,431.8,427.05,428.2,171,280 20120802,428.2,429.65,423,423.3,446,279 20120803,424.05,425.6,421,425.05,258,280 20120804,425.05,425.05,424.7,424.95,8,313 20120806,424.2,426,423.3,425.9,167,325 20120807,426.05,430,425.95,429.15,163,356 20120808,428.05,429.5,427.15,428.05,130,371 20120809,429.25,430.4,427.8,428.45,163,367 20120810,427.6,427.6,423.95,426,332,353 20120811,426,426.15,426,426,38,342 20120813,425.95,426.5,423,423.6,326,344 20120814,422.9,426.8,422.2,425.5,218,401 20120816,426.3,426.45,424.05,426.05,245,569 20120817,426.3,430.25,426.15,429.95,428,570 20120818,429.5,430.1,429.5,429.9,35,500 20120821,425.8,430.8,425.8,429.65,565,679 20120822,430.4,432.3,429.25,431.05,539,772 20120823,432.8,435.5,432.2,432.65,593,880 20120824,432.15,434.6,431.15,434.4,545,898 20120825,434.5,435.5,434.3,435.25,68,0