1986 07 27.82  15.21  21.51 
1986 08 25.02  10.26  17.64 
1986 09 17.83   7.28  12.55 
1986 10 14.06    .42   7.24 
1986 11   . 0 -10.25  -5.12 
1986 12  -.70 -11.05  -5.87 
1987 01 -2.15 -12.27  -7.21 
1987 02  2.17  -7.78  -2.80 
1987 03  2.64  -6.72  -2.04 
1987 04 18.56   1.03   9.79 
1987 05 22.56   8.35  15.45 
1987 06 27.30  12.25  19.77 
1987 07 29.22  14.99  22.10 
1987 08 26.43  11.29  18.86 
1987 09 22.17   6.84  14.50 
1987 10 12.61  -1.70   5.45 
1987 11  6.11  -5.65    .23 
1987 12 -2.79 -10.27  -6.53 
1988 01 -8.58 -20.46 -14.52 
1988 02 -7.17 -19.44 -13.30 
1988 03  3.88  -6.99  -1.55 
1988 04 15.96  -2.86   6.55 
1988 05 25.26   8.46  16.86 
1988 06 30.85  13.98  22.41 
1988 07 31.93  14.28  23.10 
1988 08 29.33  13.21  21.27 
1988 09 20.90   6.43  13.66 
1988 10 13.17  -1.81   5.68 
1988 11  1.99  -7.78  -2.89 
1988 12 -3.55 -14.56  -9.05 
1989 01 -4.55 -18.85 -11.70 
1989 02 -8.39 -22.58 -15.48 
1989 03 -2.81 -11.33  -7.07 
1989 04 11.90   -.69   5.60 
1989 05 21.64   6.45  14.04 
1989 06 24.53  10.22  17.38 
1989 07 30.86  15.41  23.13 
1989 08 28.06  13.05  20.55 
1989 09 21.43   6.10  13.76 
1989 10 16.70  -1.09   7.80 
1989 11  1.95 -10.27  -4.16 
1989 12 -8.14 -20.45 -14.30 
1990 01   . 4 -11.03  -5.49 
1990 02 -1.89 -15.71  -8.80 
1990 03  5.51  -5.85   -.16 
1990 04 13.98  -2.13   5.92 
1990 05 19.37   4.14  11.75 
1990 06 24.84  12.07  18.45 
1990 07 27.15  12.94  20.04 
1990 08 27.88  12.65  20.26 
1990 09 24.66   8.58  16.61 
