1980 01 -9.60 -24.35 -16.97 
1980 02  -.80 -15.45  -8.12 
1980 03   .47 -12.92  -6.22 
1980 04 12.33  -3.68   4.32 
1980 05 14.13   -.34   6.89 
1980 06 16.02   3.43   9.72 
1980 07 18.85   4.69  11.77 
1980 08 14.37   2.84   8.60 
1980 09 12.30    .73   6.51 
1980 10 10.56  -2.84   3.86 
1980 11  3.83  -8.43  -2.30 
1980 12 -7.82 -18.95 -13.38 
1981 01  3.45 -10.94  -3.74 
1981 02   .30 -12.05  -5.87 
1981 03  4.61  -9.03  -2.20 
1981 04  6.97  -5.55    .70 
1981 05 12.13    .15   6.14 
1981 06 14.10   1.33   7.71 
1981 07 18.15   5.45  11.79 
1981 08 21.87   6.03  13.95 
1981 09 15.17    .35   7.76 
1981 10  7.65  -4.00   1.82 
1981 11  4.17  -8.85  -2.34 
1981 12 -5.98 -17.82 -11.90 
1982 01 14.13 -28.23 -21.18 
1982 02 -8.04 -19.93 -13.98 
1982 03 -1.50 -14.79  -8.14 
1982 04  4.02 -11.02  -3.50 
1982 05 11.40  -2.42   4.48 
1982 06 17.29   3.53  10.41 
1982 08 15.85   3.42   9.63 
1982 09 14.72   1.00   7.86 
1982 10  9.55  -5.00   2.27 
1982 11 -2.05 -16.15  -9.09 
1982 12 -1.79 -14.63  -8.21 
1983 01  -.37 -14.60  -7.48 
1983 02  1.57 -12.05  -5.24 
1983 03  -.73 -10.55  -5.64 
1983 04  7.73  -5.09   1.32 
1983 05 13.47   -.68   6.39 
1983 11   .40 -10.28  -4.94 
1983 12 11.40 -24.74 -18.07 
1984 01  1.44 -12.40  -5.47 
1984 02  5.29 -10.53  -2.62 
1984 03  2.73 -10.87  -4.06 
1984 04  7.87  -5.62   1.12 
1984 05 10.50  -2.24   4.13 
1984 06 15.72   2.45   9.08 
1984 07 21.28   3.56  12.42 
1984 09  9.13  -3.32   2.90 
1984 10  5.62  -7.74  -1.05 
1984 11  -.93 -15.57  -8.25 
1984 12 -6.57 -22.87 -14.72 
1985 02 -3.36 -17.77 -10.56 
1985 03  2.69 -12.13  -4.72 
1985 04  6.97  -5.52    .72 
1985 05 14.98  -1.23   6.87 
1985 06 15.68   1.30   8.49 
1985 07 22.16   4.78  13.47 
1985 08 16.89   2.62   9.75 
1985 09  9.70  -2.36   3.66 
1985 10  6.23  -4.87    .68 
1985 11 -9.83 -23.68 -16.75 
1986 02 -4.33 -18.44 -11.38 
1986 03  5.02  -7.31  -1.14 
