1/May/2011,0.1490,1851.65 2/May/2011,0.1570,1950.69 3/May/2011,0.1293,1607.40 4/May/2011,0.1366,1697.38 5/May/2011,0.1309,1626.92 6/May/2011,0.1388,1724.94 7/May/2011,0.1290,1603.64 8/May/2011,0.1390,1727.76 9/May/2011,0.1317,1636.62 10/May/2011,0.1524,1894.42 11/May/2011,0.1563,1942.41