1/May/2011,0.0221,274.44 2/May/2011,0.0241,299.86 3/May/2011,0.0252,312.74 4/May/2011,0.0219,272.67 5/May/2011,0.0224,278.89 6/May/2011,0.0214,265.85 7/May/2011,0.0242,300.20 8/May/2011,0.0257,319.12 9/May/2011,0.0215,266.84 10/May/2011,0.0186,231.35 11/May/2011,0.0208,258.02