1/May/2011,0.0424,526.83 2/May/2011,0.0518,644.32 3/May/2011,0.0373,463.44 4/May/2011,0.0369,458.30 5/May/2011,0.0476,591.75 6/May/2011,0.0445,553.60 7/May/2011,0.0386,479.09 8/May/2011,0.0363,450.67 9/May/2011,0.0383,475.67 10/May/2011,0.0403,501.30 11/May/2011,0.0371,460.87