1969 12 -5.57 -17.29 -11.43 
1970 01 12.67 -26.07 -19.36 
1970 02 -9.18 -26.47 -17.83 
1970 03 -1.00 -20.35 -10.67 
1970 04  6.43  -6.13    .14 
1970 05 11.64    .48   6.06 
1970 06 22.90   5.07  13.98 
1970 07 26.13   8.67  17.40 
1970 08 24.34   7.45  15.89 
1970 09 16.98   4.28  10.63 
1970 10 10.51    .11   5.31 
1970 11  -.50  -8.96  -4.73 
1970 12 -7.50 -19.51 -13.50 
1971 01 14.65 -25.75 -20.20 
1971 02 -6.61 -23.30 -14.95 
1971 03 -1.74 -18.35 -10.04 
1971 04  7.19  -5.88    .65 
1971 05 15.26   -.99   7.13 
1971 06 22.57   4.58  13.57 
1971 07 22.24 -99.99 -99.99 
1971 08 23.24 -99.99 -99.99 
1971 09 18.34 -99.99 -99.99 
1971 10 11.92   3.71   7.81 
1971 11  -.83  -8.37  -4.60 
1971 12 -6.97 -20.74 -13.85 
1972 01 14.49 -28.64 -21.56 
1972 02 11.02 -26.67 -18.84 
1972 03 -3.30 -19.74 -11.52 
1972 04  6.84  -8.76   -.96 
1972 05 21.24    .89  11.06 
1972 06 22.32   3.32  12.82 
1972 07 22.30   7.01  14.65 
1972 08 23.06   6.55  14.80 
1972 09 14.82    .39   7.60 
1972 10  6.61  -2.81   1.90 
1972 11 -2.05  -9.56  -5.80 
1972 12 12.40 -23.94 -18.17 
1973 01 -6.87 -20.77 -13.82 
1973 02 -7.35 -21.92 -14.63 
1973 03  4.00  -9.35  -2.67 
1973 04  7.93  -5.25   1.33 
1973 05 15.25    . 8   7.66 
1973 06 20.00   6.97  13.48 
1973 07 23.43   8.07  15.75 
1973 08 23.65   9.10  16.37 
1973 09 16.04   2.80   9.42 
1973 10 12.66    .62   6.64 
1973 11  -.88 -99.99 -99.99 
1973 12 -9.09 -99.99 -99.99 
1974 01 11.48 -25.26 -18.36 
1974 02 -7.20 -99.99 -99.99 
1974 03 -3.31 -20.32 -11.81 
1974 04  7.58  -6.80    .38 
1974 05 12.84  -1.60   5.62 
1974 06 21.35   3.31  12.33 
1974 07 25.39   9.27  17.33 
1974 08 20.99   6.88  13.93 
1974 09 12.27   -.35   5.96 
1974 10  9.18  -2.47   3.35 
1974 11   .81  -9.82  -4.50 
1974 12 -3.96 -14.49  -9.22 
1975 01 -8.93 -22.45 -15.69 
1975 02 -7.30 -21.50 -14.40 
1975 03 -2.79 -16.84  -9.81 
1975 04  6.24  -9.81  -1.78 
1975 05 19.61   1.36  10.48 
1975 06 21.07   6.54  13.80 
1975 07 26.09   9.72  17.91 
1975 08 22.58   5.50  14.04 
1975 09 15.15   1.07   8.10 
1975 10 10.43  -2.53   3.95 
1975 11  2.70 -10.34  -3.82 
1975 12 -7.45 -22.39 -14.92 
1976 01 11.71 -25.60 -18.65 
1976 02 -4.19 -17.57 -10.88 
1976 03 -2.77 -17.32 -10.04 
1976 04 10.43  -5.97   2.23 
1976 05 17.16  -3.15   7.00 
1976 06 23.69   6.66  15.17 
1976 07 24.62   6.61  15.61 
1976 08 25.26   5.11  15.18 
1976 09 17.36   -.88   8.24 
1976 10  6.76  -4.96    .89 
1976 11 -3.46 -13.67  -8.56 
1976 12 13.26 -28.77 -21.01 
1977 01 14.29 -28.16 -21.22 
1977 02 -6.60 -17.18 -11.89 
1977 03  3.65 -10.32  -3.33 
1977 04 11.42  -4.88   3.27 
1977 05 21.93   2.93  12.43 
1977 06 19.78   5.85  12.81 
1977 07 24.13   8.28  16.20 
1977 08 18.76   4.60  11.68 
1977 09 15.44   4.27   9.85 
1977 10 10.96  -2.49   4.23 
1977 11   .69 -10.54  -4.92 
1977 12 10.03 -19.16 -14.59 
1978 01 12.93 -27.03 -19.98 
1978 02 -8.22 -27.02 -17.62 
1978 03  -.40 -18.56  -9.47 
1978 04  6.26  -7.18   -.45 
1978 05 18.78   1.42  10.10 
1978 06 20.63   4.96  12.79 
1978 07 22.95   6.69  14.82 
1978 08 22.15   8.43  15.29 
1978 09 16.87   3.97  10.42 
1978 10 10.50  -1.19   4.65 
1978 11 -1.00 -12.92  -6.96 
1978 12 10.98 -25.68 -18.33 
1979 01 15.50 -29.63 -22.56 
1979 02 11.29 -28.29 -19.79 
1979 03 -1.66 -15.06  -8.36 
1979 04  5.55  -9.07  -1.75 
1979 05 12.85  -1.56   5.64 
1979 06 20.98   2.75  11.86 
1979 08 21.18   6.05  13.61 
1979 09 16.83   3.75  10.29 
1979 10  6.16  -2.23   1.96 
1979 11 -1.37 -10.00  -5.68 
1979 12 -3.94 -16.20 -10.07 
1980 01 -9.93 -24.85 -17.39 
1980 02 -8.24 -24.88 -16.56 
1980 03 -1.55 -21.10 -11.32 
1980 04 10.72  -5.97   2.37 
1980 05 19.85   1.15  10.50 
1980 06 20.67   3.70  12.18 
1980 07 25.48   8.10  16.79 
1980 08 22.45   8.30  15.37 
1980 09 14.42   3.23   8.82 
1980 10  6.56  -4.00   1.28 
1980 11   .-3 -10.93  -5.48 
1980 12 -9.95 -22.92 -16.43 
1981 01 -9.21 -23.74 -16.47 
1981 02 -5.80 -17.57 -11.68 
1981 03  1.16 -11.73  -5.28 
1981 04  9.24  -4.88   2.17 
1981 05 17.45  -1.82   7.81 
1981 06 19.45   5.68  12.56 
1981 07 25.61   6.61  16.11 
1981 08 24.11   6.79  15.45 
1981 09 15.95    .90   8.42 
1981 10  6.32  -3.53   1.39 
1981 12 -7.58 -17.94 -12.76 
1982 01 16.16 -32.68 -24.42 
1982 02 -9.05 -25.80 -17.42 
1982 03 -2.17 -16.07  -9.12 
1982 05 17.98   2.40  10.18 
1982 06 18.43   2.67  10.55 
1982 07 23.85   8.05  15.95 
1982 08 20.15   5.61  12.88 
1982 09 15.92   3.33   9.62 
1982 10  9.56    .18   4.87 
1983 06 21.90 -99.99 -99.99 
1983 08 26.21 -99.99 -99.99 
1983 09 17.36 -99.99 -99.99 
1984 02 -1.40 -99.99 -99.99 
