19970101 300.65 300.81 300.51 300.48 298.59 298.43 298.53 298.51 19970106 300.67 300.61 300.43 300.77 298.55 298.54 298.50 298.69 19970111 300.30 300.76 300.61 300.74 298.55 298.58 298.46 298.57 19970116 300.47 300.35 300.33 300.37 298.42 298.44 298.41 298.42 19970121 300.31 300.65 300.33 300.28 298.33 298.45 298.43 298.53 19970126 300.61 300.42 300.59 300.40 298.51 298.48 298.52 298.28 19970131 300.50 300.46 300.73 300.35 298.33 298.36 298.36 298.48 19970205 300.42 300.45 301.02 300.69 298.48 298.57 298.46 298.48 19970210 300.92 300.70 300.60 300.91 298.42 298.60 298.50 298.50 19970215 300.45 300.84 300.50 300.55 298.60 298.54 298.53 298.55 19970220 300.78 300.69 300.75 300.77 298.63 298.55 298.65 298.57 19970225 300.78 300.14 300.78 300.62 298.72 298.58 298.70 298.71 19970302 300.68 300.63 300.94 300.74 298.58 298.43 298.57 298.71 19970307 300.76 300.69 300.91 300.75 298.62 298.64 298.68 298.62 19970312 301.04 300.84 300.83 301.00 298.63 298.64 298.69 298.77 19970317 300.60 300.47 300.47 300.67 298.61 298.65 298.64 298.65 19970322 300.69 300.86 300.71 300.97 298.62 298.71 298.75 298.81 19970327 300.74 300.96 300.62 301.09 298.75 298.64 298.61 298.81 19970401 300.47 300.74 300.56 300.76 298.58 298.61 298.67 298.80 19970406 300.73 300.63 300.73 300.98 298.63 298.60 298.67 298.70 19970411 300.45 300.67 300.74 300.66 298.67 298.56 298.70 298.75 19970416 300.67 300.93 300.73 300.84 298.70 298.74 298.63 298.67 19970421 300.79 300.55 301.04 300.76 298.61 298.66 298.73 298.67 19970426 300.78 300.85 300.51 300.63 298.69 298.75 298.63 298.63 19970501 300.54 300.79 300.88 300.65 298.71 298.74 298.70 298.66 19970506 300.80 300.74 300.83 300.98 298.72 298.66 298.78 298.81 19970511 300.72 300.70 300.77 300.96 298.66 298.71 298.79 298.72 19970516 300.85 300.99 301.06 300.73 298.65 298.72 298.78 298.70 19970521 300.93 300.92 300.76 300.88 298.68 298.68 298.67 298.71 19970526 300.95 300.92 300.85 300.82 298.75 298.77 298.70 298.70 19970531 300.77 300.77 300.83 300.87 298.77 298.74 298.75 298.72 19970605 300.87 300.78 300.78 300.73 298.71 298.76 298.74 298.75 19970610 300.63 300.75 300.87 300.57 298.71 298.77 298.77 298.83 19970615 300.87 300.82 300.84 300.94 298.76 298.76 298.81 298.79 19970620 300.79 300.90 300.69 300.75 298.86 298.72 298.75 298.69 19970625 300.98 300.97 300.73 300.79 298.76 298.70 298.68 298.65 19970630 300.79 300.87 300.83 300.75 298.75 298.78 298.83 298.75 19970705 300.67 300.84 300.91 300.94 298.80 298.86 298.79 298.72 19970710 300.69 300.75 300.76 300.87 298.80 298.81 298.87 298.90 19970715 300.74 300.77 300.87 300.85 298.84 298.85 298.83 298.88 19970720 300.99 300.83 301.03 300.70 298.88 298.90 298.85 298.82 19970725 300.70 301.02 300.82 300.84 298.79 298.89 298.90 298.79 19970730 300.73 300.81 300.63 300.76 298.81 298.83 298.87 298.87 19970804 300.85 300.83 300.83 300.73 298.89 298.88 298.84 298.88