1980 10 18.37  -1.21   8.58 
1980 11 14.41  -6.67   3.87 
1980 12 13.01  -5.77   3.62 
1981 01  9.64  -9.96   -.15 
1981 02  9.92 -11.05   -.56 
1981 03 10.41  -5.34   2.53 
1981 04 20.35   1.33  10.84 
1981 05 19.91   4.40  12.15 
1981 06 28.29  11.23  19.76 
1981 07 30.18  13.59  21.88 
1981 08 26.63  11.98  19.30 
1981 09 24.71   7.84  16.27 
1981 10 17.67   1.10   9.38 
1981 11 13.86  -4.65   4.60 
1981 12 99.99 -10.27 -99.99 
1982 01 99.99 -12.35 -99.99 
1982 02  5.64 -11.60  -2.98 
1982 03 11.98  -5.66   3.16 
1982 04 16.74  -2.80   6.97 
1982 05 19.34   3.81  11.57 
1982 06 22.58   8.14  15.36 
1982 07 29.47  11.49  20.48 
1982 08 28.20  13.12  20.66 
1982 09 24.18   7.59  15.88 
1982 10 16.82  -1.52   7.64 
1982 11  9.76  -8.29    .73 
1982 12  6.96 -10.49  -1.76 
1983 01  6.89 -15.83  -4.47 
1983 02  7.88 -15.54  -3.83 
1983 03  7.13 -13.59  -3.23 
1983 04 11.51  -6.48   2.51 
1983 05 18.37   2.10  10.24 
1983 06 24.09   7.08  15.58 
1983 07 30.74  11.22  20.98 
1983 08 29.90  12.32  21.11 
1983 09 25.95   6.61  16.28 
1983 10 18.87    .32   9.59 
1983 11 10.51  -6.25   2.13 
1983 12 -1.59 -15.44  -8.51 
1984 01  2.08 -13.32  -5.61 
1984 02  7.26  -8.54   -.63 
1984 03  8.29  -7.06    .61 
1984 04 12.14  -3.09   4.52 
1984 05 21.51   4.46  12.99 
1984 06 25.74   8.43  17.09 
1984 07 29.71  11.70  20.70 
1984 08 27.82  12.85  20.33 
1984 09 22.78   5.94  14.36 
1984 10 12.66   -.26   6.20 
1984 11 12.03  -6.97   2.53 
1984 12  7.14 -10.21  -1.53 
1985 01  2.23 -12.52  -5.14 
1985 02  3.33 -13.36  -5.01 
1985 03 11.86  -7.09   2.38 
1985 04 18.08  -1.49   8.29 
1985 05 21.44   6.11  13.77 
1985 06 26.23   8.77  17.50 
1985 07 28.88  13.35  21.11 
1985 08 28.72  11.20  19.95 
1985 09 22.03   7.01  14.52 
