1987 07 22.55   6.44  14.49 
1987 08 20.89   3.26  12.07 
1987 09 21.61    .62  11.11 
1987 10 14.18  -4.00   5.09 
1987 11  4.62  -4.38    .11 
1987 12 -1.31 -10.47  -5.89 
1988 01 -3.97 -15.34  -9.65 
1988 02  1.53 -10.91  -4.69 
1988 03  6.90  -5.77    .56 
1988 04 13.47  -2.09   5.68 
1988 05 16.50    . 0   8.25 
1988 06 20.12   3.55  11.83 
1988 07 23.10   4.66  13.88 
1988 08 22.10   4.52  13.31 
1988 09 17.04    .35   8.70 
1988 10 13.82  -1.76   6.03 
1988 11  3.83  -4.85   -.51 
1988 12 -2.15 -11.79  -6.97 
1989 01 -2.05 -14.93  -8.49 
1989 02 99.99 -19.66 -99.99 
1989 03  4.35  -9.47  -2.56 
1989 04 14.00  -3.98   5.01 
1989 05 16.70   -.18   8.26 
1989 06 20.81   3.97  12.39 
1989 07 23.35   4.42  13.88 
1989 08 21.00   5.53  13.26 
1989 09 19.07    .55   9.80 
1989 11  2.40  -6.70  -2.14 
1989 12  -.74  -7.78  -4.26 
1990 01  -.98 -12.45  -6.71 
1990 02  -.83 -15.98  -8.40 
1990 03  7.90  -8.60   -.35 
1990 04 12.42  -2.42   5.00 
1990 05 15.18   2.09   8.64 
1990 06 18.60   5.02  11.81 
1990 07 24.15   6.62  15.38 
1990 08 23.87   5.24  14.55 
1990 09 20.76    . 2  10.39 
1990 10  8.29  -2.76   2.76 
1990 11  1.16  -8.00  -3.42 
1990 12 99.99 -15.80 -99.99 
1991 01 99.99 -19.03 -99.99 
1991 02  6.00  -3.27   1.36 
1991 03  3.44 -10.50  -3.53 
1991 04 13.24  -2.75   5.24 
1991 05 99.99    .60 -99.99 
1991 07 22.57   5.69  14.13 
1991 08 99.99   7.88 -99.99 
1991 09 19.45   1.17  10.31 
1991 10  8.22  -6.57    .82 
1991 11  2.48  -6.26  -1.89 
1991 12 99.99  -8.54 -99.99 
1992 01  1.16  -5.44  -2.14 
1992 02  3.14  -5.50  -1.17 
1992 04 99.99  -1.36 -99.99 
1992 08 22.73 -99.99 -99.99 
1992 11  1.52  -6.37  -2.42 
1993 03  5.60  -7.85  -1.12 
