1980 09 17.79   5.50  11.65 
1980 10  8.97   -.52   4.22 
1980 11  3.27  -6.12  -1.42 
1980 12 -9.22 -20.29 -14.76 
1981 01 -9.35 -20.89 -15.12 
1981 02 -5.94 -17.45 -11.70 
1981 03  4.50  -6.59  -1.04 
1981 04 12.07  -2.62   4.72 
1981 05 19.60   3.36  11.48 
1981 07 27.20  13.50  20.35 
1981 09 18.48   4.69  11.58 
1981 10  9.97   -.21   4.88 
1981 11  5.31  -4.41    .45 
1981 12 99.99 -18.52 -99.99 
1982 02 99.99 -23.21 -99.99 
1982 05 17.95   6.40  12.17 
1982 06 19.90   6.85  13.37 
1982 07 26.28  13.65  19.96 
1982 08 23.35   9.35  16.35 
1982 09 19.03   5.90  12.46 
1982 10 10.26   1.31   5.78 
1982 11 -1.37 -10.38  -5.87 
1982 12 -5.63 -14.18  -9.90 
1983 01 -6.79 -16.06 -11.42 
1983 02 -5.66 -14.27  -9.96 
1983 03  -.88  -7.22  -4.04 
1983 04  8.72  -2.00   3.36 
1983 06 23.78  10.35  17.06 
1983 07 27.48  15.03  21.25 
1983 08 29.65  14.47  22.06 
1983 09 18.48   6.70  12.59 
1983 10 10.45    .32   5.38 
1983 11   .65  -5.40  -2.37 
1983 12 16.06 -25.24 -20.65 
1984 01 10.50 -22.67 -16.58 
1984 02 -2.93 -13.31  -8.12 
1984 03 -1.58 -14.32  -7.95 
1984 04 13.70   -.27   6.71 
1984 06 21.95  11.69  16.82 
1984 07 25.50  11.59  18.54 
1984 08 27.63  12.80  20.21 
1984 09 16.86   2.16   9.51 
1984 10 11.07   -.35   5.35 
1984 12 11.80 -22.39 -17.09 
1985 01 99.99 -27.79 -99.99 
1985 03  1.92  -9.04  -3.56 
1985 05 21.27 -99.99 -99.99 
1985 06 99.99   6.82 -99.99 
1985 07 25.92  10.45  18.18 
1985 08 21.17   9.57  15.37 
1985 09 15.17   4.65   9.91 
1985 10 10.50  -1.10   4.69 
1985 11 99.99 -18.92 -99.99 
1986 04 11.20 -99.99 -99.99 
1986 05 20.44   5.26  12.85 
1986 07 25.00  12.39  18.69 
1988 05 23.76 -99.99 -99.99 
1988 06 29.35  13.10  21.22 
1988 07 28.06  13.02  20.54 
1988 09 18.41   5.91  12.16 
1988 10 99.99  -4.21 -99.99 
1991 09 99.99   4.73 -99.99 
