1974 10 -1.46 -10.81  -6.13 
1974 11 -8.33 -18.43 -13.38 
1974 12 11.73 -22.96 -17.34 
1975 01 22.69 -32.72 -27.70 
1975 02 17.70 -31.09 -24.39 
1975 03 14.17 -26.96 -20.56 
1975 04 -2.52 -16.11  -9.31 
1975 05  5.04  -6.31   -.63 
1975 06 14.87    .67   7.77 
1975 07 18.00   3.93  10.96 
1975 08 14.64    .14   7.39 
1975 09  7.43  -1.67   2.88 
1975 10 -4.71 -13.47  -9.09 
1975 11 17.83 -30.87 -24.35 
1975 12 21.31 -31.82 -26.56 
1976 01 16.52 -28.33 -22.42 
1976 02 20.65 -32.57 -26.61 
1976 03 13.78 -26.72 -20.25 
1976 04  -.63 -15.48  -8.05 
1976 05  6.76  -4.37   1.19 
1976 06 15.37   -.89   7.24 
1976 09  9.10  -2.18   3.46 
1976 10 -1.29 -11.06  -6.17 
1976 11 -5.04 -15.71 -10.37 
1976 12 15.22 -26.24 -20.73 
1977 01 11.53 -22.34 -16.93 
1977 02 -5.76 -16.92 -11.34 
1977 03 12.13 -26.17 -19.15 
1977 04 -1.24 -15.74  -8.49 
1977 05  7.50  -3.02   2.24 
1977 06 15.21    .80   8.00 
1977 07 15.78   1.21   8.49 
1977 08 16.74   1.48   9.10 
1977 09  8.10  -3.19   2.45 
1977 11 16.02 -26.46 -21.24 
1977 12 26.58 -34.96 -30.77 
1978 01 17.95 -27.64 -22.79 
1978 02 12.85 -25.84 -19.34 
1978 03 10.70 -23.20 -16.95 
1978 04 -3.37 -19.17 -11.27 
1978 05  5.54  -4.67    .43 
1978 06 13.20   1.22   7.21 
1978 07 16.79   3.11   9.95 
1978 08 16.14   1.32   8.72 
1978 09  9.93  -2.05   3.94 
1978 10  -.24  -8.45  -4.34 
1978 11 13.30 -22.98 -18.14 
1978 12 19.70 -28.40 -24.05 
1979 01 23.27 -32.18 -27.73 
1979 02 31.73 -42.48 -37.10 
1979 03 10.07 -19.49 -14.78 
1979 04 -4.13 -19.98 -12.05 
1979 05  4.77  -7.45  -1.33 
1979 06 13.85    .-7   6.89 
1979 07 17.65   5.06  11.35 
1979 08 17.04   1.79   9.42 
1979 09 10.27  -2.58   3.84 
1979 10  1.29  -7.63  -3.17 
1979 11 -3.85 -16.68 -10.26 
1979 12 16.27 -28.18 -22.22 
1980 01 19.95 -32.79 -26.37 
1980 02 11.34 -22.78 -17.06 
1980 03 11.39 -26.03 -18.71 
1980 06 16.74   1.10   8.92 
1980 07 16.90   4.26  10.58 
1980 08 13.27    .90   7.08 
1980 09  5.02  -4.59    .21 
1980 10  2.60  -5.97  -1.68 
1980 11 99.99 -13.48 -99.99 
1981 01 99.99 -17.81 -99.99 
1981 02 14.11 -26.82 -20.46 
1981 03 -5.77 -24.09 -14.93 
1981 04   .15 -99.99 -99.99 
1981 05 11.53 -10.35    .58 
1981 06 13.21  -3.12   5.04 
1981 07 16.70   3.29  10.00 
1981 08 14.55   1.34   7.94 
1981 09  6.58  -2.88   1.84 
1981 10 -2.08  -9.68  -5.88 
1981 11 -8.18 -18.40 -13.29 
1981 12 99.99 -29.68 -99.99 
1982 01 99.99 -43.67 -99.99 
1982 03 15.83 -29.82 -22.82 
1982 04 -3.60 -17.79 -10.70 
1982 05  4.92  -6.29   -.68 
1982 06 16.07    .-2   8.02 
1982 07 19.15   3.32  11.23 
