20110501   298.78 298.75 298.61 298.71
20110502   298.65 298.76 298.83 298.70
20110503   298.82 298.83 298.71 298.68
20110504   298.68 298.74 298.66 298.77
20110505   298.66 298.80 298.71 298.76
20110506   298.83 298.65 298.74 298.72
20110507   298.69 298.75 298.81 298.69
20110508   298.68 298.74 298.72 298.76
20110509   298.77 298.72 298.83 298.72
20110510   298.72 298.68 298.78 298.75
20110511   298.67 298.77 298.72 298.59
20110512   298.73 298.76 298.63 298.68
20110513   298.74 298.72 298.66 298.66
20110514   298.80 298.68 298.62 298.76
20110515   298.68 298.67 298.69 298.74
20110516   298.63 298.77 298.76 298.79
20110517   298.66 298.72 298.69 298.76
20110518   298.69 298.68 298.66 298.64
20110519   298.65 298.72 298.69 298.72
20110520   298.71 298.62 298.63 298.65
20110521   298.68 298.67 298.63 298.71
20110522   298.66 298.66 298.66 298.65
20110523   298.69 298.69 298.62 298.77
20110524   298.64 298.65 298.67 298.72
20110525   298.64 298.75 298.69 298.62
20110526   298.66 298.69 298.72 298.66
20110527   298.74 298.68 298.62 298.58
20110528   298.65 298.60 298.67 298.67
20110529   298.69 298.67 298.62 298.70
20110530   298.68 298.59 298.66 298.69
20110531   298.70 298.67 298.59 298.64