19880101 300.92 300.36 300.65 300.57 298.47 298.23 298.17 298.37 19880106 300.37 300.35 300.70 300.86 298.54 298.36 298.37 298.47 19880111 300.73 300.35 300.91 300.68 298.40 298.27 298.53 298.36 19880116 300.63 300.16 300.58 300.65 298.37 298.22 298.40 298.28 19880121 300.65 300.50 300.61 300.52 298.33 298.25 298.27 298.38 19880126 300.55 300.56 300.47 300.57 298.27 298.45 298.42 298.59 19880131 300.64 300.48 300.39 300.50 298.43 298.34 298.40 298.34 19880205 300.65 300.40 300.27 300.27 298.43 298.38 298.40 298.40 19880210 300.53 300.25 300.56 300.21 298.38 298.33 298.41 298.38 19880215 300.43 300.72 300.68 300.28 298.41 298.44 298.43 298.33 19880220 300.63 300.44 300.67 300.38 298.28 298.18 298.24 298.22 19880225 300.50 300.29 300.05 300.27 298.36 298.34 298.14 298.15 19880302 300.21 300.60 300.41 300.39 298.46 298.28 298.32 298.19 19880307 300.54 300.48 300.39 300.56 298.38 298.38 298.40 298.38 19880312 300.31 300.31 300.55 300.37 298.21 298.31 298.41 298.34 19880317 300.84 300.59 300.56 300.74 298.37 298.29 298.21 298.31 19880322 300.26 300.75 300.25 300.77 298.26 298.38 298.35 298.32 19880327 300.68 300.74 300.80 300.40 298.40 298.26 298.35 298.28 19880401 300.54 300.74 300.44 300.59 298.42 298.43 298.31 298.45 19880406 300.50 300.61 300.83 300.75 298.43 298.34 298.38 298.23 19880411 300.78 300.49 300.82 300.63 298.26 298.48 298.38 298.40 19880416 300.71 300.44 300.59 300.77 298.33 298.38 298.34 298.43 19880421 300.77 300.45 300.66 300.57 298.37 298.20 298.43 298.24 19880426 300.65 300.87 300.71 300.75 298.38 298.27 298.39 298.31 19880501 300.72 300.54 300.48 300.50 298.29 298.35 298.25 298.28 19880506 300.68 300.51 300.83 300.83 298.19 298.17 298.33 298.17 19880511 301.05 300.68 300.74 300.84 298.37 298.31 298.26 298.43 19880516 300.78 300.98 300.96 300.63 298.29 298.37 298.39 298.43 19880521 300.64 300.91 300.82 300.95 298.31 298.34 298.45 298.45 19880526 300.63 300.90 300.81 300.63 298.32 298.41 298.45 298.42 19880531 300.74 300.80 300.58 300.59 298.40 298.41 298.40 298.33 19880605 300.84 300.64 300.62 300.84 298.43 298.31 298.37 298.31 19880610 300.93 300.86 300.97 300.77 298.39 298.32 298.43 298.36 19880615 300.79 300.71 300.74 300.77 298.34 298.35 298.35 298.30 19880620 300.81 300.74 300.77 300.67 298.37 298.41 298.37 298.34 19880625 300.48 300.63 300.58 300.68 298.35 298.42 298.45 298.45 19880630 300.62 300.71 300.56 300.75 298.37 298.38 298.38 298.40 19880705 300.54 300.68 300.81 300.62 298.38 298.36 298.36 298.38 19880710 300.81 300.71 300.69 300.72 298.35 298.40 298.39 298.38 19880715 300.70 300.78 301.03 300.96 298.38 298.46 298.47 298.40 19880720 300.83 300.80 300.77 300.68 298.34 298.37 298.44 298.31 19880725 300.69 300.63 300.76 300.78 298.47 298.38 298.39 298.39 19880730 300.82 300.62 300.81 300.73 298.48 298.49 298.42 298.50 19880804 300.87 300.73 300.63 300.70 298.43 298.42 298.48 298.43