1981 07 23.85  11.94  17.89 
1981 08 27.37  12.13  19.75 
1981 09 19.52   6.24  12.88 
1981 10 10.76  -1.21   4.77 
1981 11  4.23  -3.90    .16 
1981 12 -6.83 -16.79 -11.81 
1982 01 19.11 -30.26 -24.68 
1982 02 10.81 -21.88 -16.34 
1982 03 99.99 -13.11 -99.99 
1982 04  7.02  -7.24   -.10 
1982 05 15.97   3.70   9.83 
1982 06 21.96   9.39  15.67 
1982 07 23.40  11.02  17.20 
1982 08 21.19   8.27  14.73 
1982 09 17.54   3.89  10.71 
1982 10 11.24  -1.15   5.04 
1982 11 -4.91 -14.69  -9.79 
1982 12 -6.50 -15.86 -11.18 
1983 01 -5.91 -17.20 -11.55 
1983 02 -4.84 -13.62  -9.22 
1983 03 -1.59  -8.97  -5.28 
1983 04 10.73  -2.07   4.33 
1983 05 17.27   1.71   9.49 
1983 06 20.66   8.14  14.40 
1983 07 23.18  10.93  17.05 
1983 08 26.40  11.66  19.02 
1983 09 14.79   3.18   8.98 
1983 10 99.99  -1.77 -99.99 
1984 01 -4.12 -15.23  -9.67 
1984 02  1.93  -9.21  -3.64 
1984 03   .-5 -10.71  -5.38 
1984 04 13.43    .66   7.04 
1984 05 15.16   3.11   9.13 
1984 06 21.18   8.75  14.96 
1984 08 26.55  10.69  18.61 
1984 09 12.16   1.93   7.04 
1984 10  8.77  -2.39   3.19 
1984 11 -4.94 -13.96  -9.45 
1984 12 13.29 -24.03 -18.66 
1985 01 99.99 -17.85 -99.99 
1985 02 -8.93 -19.70 -14.31 
1985 03  1.61  -9.10  -3.74 
1985 04  8.95   -.67   4.14 
1985 05 19.34   7.15  13.24 
1985 06 18.84   5.88  12.36 
1985 09 11.81   1.04   6.43 
1985 10  8.52  -2.00   3.26 
1986 01 -1.71 -11.34  -6.52 
1986 02 -8.87 -21.54 -15.20 
1986 03  5.43  -4.66    .38 
1986 04 99.99  -3.17 -99.99 
1986 05 18.23   4.73  11.48 
1986 06 21.46   8.33  14.89 
1986 08 25.21   8.22  16.71 
1986 09 11.95   2.98   7.46 
1986 10 11.47   -.55   5.46 
1986 11 -4.42 -13.78  -9.10 
1986 12 -3.10 -12.60  -7.85 
1987 02  -.39 -10.30  -5.34 
1987 03   .75 -10.10  -4.67 
1987 04 14.34   -.21   7.06 
1987 05 20.77   5.03  12.90 
1987 06 25.07   9.60  17.33 
1987 09 21.28   4.67  12.97 
1987 11  4.63  -6.19   -.78 
1988 01 -6.28 -21.19 -13.73 
1988 02 -4.41 -17.62 -11.01 
1988 04 99.99  -5.85 -99.99 
1988 11  -.23 -10.25  -5.24 
1989 01 -4.94 -16.95 -10.95 
1989 02 12.59 -26.50 -19.54 
1989 04 10.81  -3.76   3.52 
1989 05 16.12   3.65   9.88 
1989 06 21.50   8.50  15.00 
1990 04 10.56  -3.17   3.69 
