1972 06 24.64  10.02  17.33 
1972 07 22.34   9.14  15.74 
1972 08 27.82  11.78  19.79 
1972 09 14.07   1.67   7.87 
1972 10  9.08  -3.27   2.90 
1972 11   .68  -7.03  -3.17 
1972 12 11.71 -22.38 -17.04 
1973 01 -4.66 -15.44 -10.04 
1973 02 -5.74 -16.74 -11.24 
1973 03  6.28  -5.69    .29 
1973 04  7.77  -3.39   2.19 
1973 05 18.78   4.64  11.71 
1973 06 23.42   9.58  16.50 
1973 07 26.87  10.41  18.64 
1973 08 27.56  11.71  19.63 
1973 09 18.44   5.00  11.72 
1973 10 13.44   -.35   6.54 
1973 11 -7.65 -99.99 -99.99 
1973 12 -9.60 -19.04 -14.33 
1974 01 14.60 -25.79 -20.19 
1974 02 -5.66 -18.29 -11.98 
1974 03 -5.21 -17.58 -11.39 
1974 04  7.78  -5.22   1.28 
1974 05 13.46   1.55   7.50 
1974 06 24.60   8.22  16.41 
1974 07 27.05  12.10  19.57 
1974 08 21.65   9.22  15.43 
1974 09 17.03   3.95  10.49 
1974 10 15.59    .-2   7.78 
1974 11  3.27  -8.03  -2.37 
1974 12  -.63  -9.78  -5.20 
1975 01 -7.35 -18.45 -12.90 
1975 02 10.77 -20.44 -15.60 
1975 03 -5.27 -14.88 -10.07 
1975 04  3.93  -4.15   -.11 
1975 05 17.21   3.59  10.40 
1975 06 21.96   9.00  15.48 
1975 07 29.14  13.34  21.24 
1975 08 21.74   8.79  15.26 
1975 09 19.35   5.28  12.31 
1975 10 11.43   -.40   5.51 
1975 11  2.72  -9.22  -3.25 
1975 12 -5.54 -17.49 -11.51 
1976 01 -7.77 -18.68 -13.22 
1976 02 -3.52 -12.48  -8.00 
1976 03 -1.43 -12.44  -6.93 
1976 04 13.93    .44   7.18 
1976 05 22.23   4.61  13.42 
1976 06 20.91  10.26  15.58 
1976 07 25.43  12.26  18.84 
1976 08 27.38  10.87  19.12 
1976 09 22.41   4.96  13.69 
1976 10 10.42  -2.65   3.88 
1976 11  2.69 -10.30  -3.80 
1976 12 -6.19 -16.99 -11.59 
1977 01 12.93 -23.44 -18.18 
1977 02  2.26  -8.18  -2.96 
1977 03  4.83  -8.14  -1.65 
1977 04 17.16  -1.58   7.79 
1977 05 20.88   6.78  13.83 
1977 06 24.56   9.66  17.11 
1977 07 25.19  11.18  18.18 
1977 08 21.91   7.42  14.66 
1977 09 17.04   5.31  11.17 
1977 10 13.15   -.49   6.33 
1977 11   . 9 -11.65  -5.78 
1977 12 12.52 -21.46 -16.99 
1978 01 16.79 -25.92 -21.35 
1978 02 10.48 -20.91 -15.69 
1978 03   .84  -9.96  -4.56 
1978 04 10.17   -.84   4.66 
1978 05 19.99   5.45  12.71 
1978 06 25.03   9.50  17.26 
1978 07 26.50  11.26  18.88 
1978 08 25.55   9.57  17.56 
1978 09 19.42   6.53  12.97 
1978 10 14.17    . 5   7.11 
1978 11 -3.21 -13.76  -8.48 
1978 12 -8.96 -20.39 -14.67 
1979 01 14.90 -25.12 -20.01 
1979 02 16.79 -26.27 -21.53 
1979 03   .23 -10.73  -5.25 
1979 04  5.07  -4.67    .19 
1979 05 15.45   2.80   9.12 
1979 06 24.77   8.47  16.62 
1979 07 27.11  13.08  20.09 
1979 08 26.44  10.05  18.24 
1979 09 22.60   6.30  14.45 
1979 10 12.79   1.26   7.02 
1979 11   .76  -8.79  -4.01 
1979 12 -1.95 -12.77  -7.36 
1980 01 10.81 -20.53 -15.67 
1980 02 -6.55 -16.86 -11.70 
1980 03 -2.23 -12.21  -7.22 
1980 04 17.37   2.00   9.68 
1980 05 23.37   5.94  14.65 
1980 06 24.28   9.62  16.95 
1980 07 26.06  11.40  18.73 
1980 08 23.03   8.63  15.83 
1980 09 19.21   4.87  12.04 
1980 10 13.06    .34   6.70 
1980 11  4.35  -7.03  -1.34 
1980 12 -9.32 -19.62 -14.47 
1981 01 -4.07 -12.98  -8.52 
1981 02 -3.86 -13.54  -8.70 
