1/May/2011,0.0198,245.58 2/May/2011,0.0206,256.60 3/May/2011,0.0180,223.46 4/May/2011,0.0182,225.83 5/May/2011,0.0130,162.09 6/May/2011,0.0135,167.32 7/May/2011,0.0117,145.88 8/May/2011,0.0211,261.85 9/May/2011,0.0177,219.71 10/May/2011,0.0205,254.16 11/May/2011,0.0115,142.69