Date,Open,High,Low,Close,Volume,OpenInterest
20120818,763.7,788.9,763.7,766.9,17,42
20120821,779,789.9,779,788,10,45
20120822,800,807.9,788,795.5,9,33
20120823,772.5,786,772.5,774.2,20,34
20120824,783.1,795.9,783.1,787.8,4,33
20120825,785,785,781,782.7,6,0