1964 10  15.91   -.64   7.63 
1964 11   2.56  -9.78  -3.61 
1964 12 -14.02 -25.18 -19.60 
1965 01 -11.18 -22.43 -16.80 
1965 02  -5.66 -19.76 -12.71 
1965 03  -5.93 -19.17 -12.55 
1965 04   8.82  -3.05   2.88 
1965 05  16.82   3.93  10.37 
1965 06  21.29   9.18  15.23 
1965 07  25.87  12.40  19.13 
1965 08  25.85  11.33  18.59 
1965 09  11.43   0.49   5.96 
1965 10  16.95   -.17   8.39 
1965 11  -1.61 -14.73  -8.17 
1965 12  -4.92 -14.48  -9.70 
1966 01 -14.73 -26.70 -20.71 
1966 02  -6.20 -17.96 -12.08 
1966 03   4.87  -7.60  -1.36 
1966 04   7.95  -3.73   2.10 
1966 05  20.71   4.25  12.48 
1966 06  20.24   8.62  14.43 
1966 07  25.54  11.42  18.48 
1966 08  24.02   8.42  16.22 
1966 09  23.33   6.25  14.79 
1966 10  12.73  -2.78   4.97 
1966 11  -2.09 -14.88  -8.49 
1966 12  -4.17 -15.94 -10.05 
1967 01  -7.95 -20.51 -14.23 
1967 02  -5.20 -18.33 -11.76 
1967 03  -3.47 -14.86  -9.16 
1967 04   4.77  -5.66   -.44 
1967 05  16.66   2.94   9.80 
1967 06  22.20   7.19  14.69 
1967 07  28.24  10.48  19.36 
1967 08  27.92  10.39  19.15 
1967 09  24.50   6.70  15.60 
1967 10  12.73   0.01   6.37 
1967 11   3.17  -7.45  -2.13 
1967 12  -4.46 -16.04 -10.25 
1968 01  -6.86 -18.98 -12.92 
1968 02   -.76 -13.23  -6.99 
1968 03   7.35  -4.36   1.49 
1968 04  12.64  -2.54   5.05 
1968 05  17.07   2.74   9.90 
1968 06  21.83   8.14  14.99 
1968 07  26.59   9.57  18.08 
1968 08  23.14   7.15  15.14 
1968 09  19.07   5.57  12.32 
1968 10  13.27   -.91   6.18 
1968 11   4.36  -6.95  -1.29 
1968 12  -8.45 -18.74 -13.59 
1969 01 -19.45 -31.87 -25.66 
1969 02  -7.26 -20.68 -13.97 
1969 03  -3.38 -15.76  -9.57 
1969 04  13.57   0.48   7.02 
1969 05  19.11   4.08  11.59 
1969 06  22.07   6.34  14.20 
1969 07  25.38  10.17  17.77 
1969 08  29.46   9.83  19.64 
1969 09  20.86   5.24  13.05 
1969 10   5.44  -3.27   1.08 
1969 11   5.75  -6.00   -.12 
1969 12   -.39 -10.34  -5.36 
1970 01 -11.36 -21.92 -16.64 
1970 02  -3.09 -16.03  -9.56 
1970 03  -1.69 -13.14  -7.41 
1970 04   8.59  -1.72   3.43 
1970 05  17.56   3.32  10.44 
1970 06  25.70  11.82  18.76 
1970 07  26.74  11.90  19.32 
1970 08  28.23   8.75  18.49 
1970 09  18.52   3.58  11.05 
1970 10  11.02  -2.02   4.50 
1970 11  -1.76 -10.37  -6.06 
1970 12  -7.37 -20.04 -13.70 
1971 01 -12.51 -23.26 -17.88 
1971 02  -3.70 -15.12  -9.41 
1971 03   -.61 -11.10  -5.85 
1971 04  11.70  -1.09   5.30 
1971 05  20.95   3.75  12.35 
1971 06  23.13   9.07  16.09 
1971 07  25.17   9.52  17.34 
1971 08  31.45  11.44  21.44 
1971 09  19.01   3.12  11.06 
1971 10  11.95  -2.21   4.87 
1971 11   2.44  -7.05  -2.30 
1971 12  -8.39 -21.78 -15.09 
1972 01 -11.83 -24.18 -18.00 
1972 02  -9.68 -20.54 -15.11 
1972 03   2.84 -10.50  -3.83 
1972 04  13.18  -2.59   5.29 
1972 05  20.61   3.98  12.29 
1972 06  25.10  10.02  17.56 
1972 07  23.55   8.38  15.96 
1972 08  28.42  11.92  20.17 
1972 09  15.41   0.74   8.07 
1972 10  10.34  -3.35   3.49 
1972 11   2.76  -5.75  -1.49 
1972 12  -8.96 -20.45 -14.70 
1973 01  -2.62 -13.48  -8.04 
1973 02  -2.32 -14.09  -8.20 
1973 03   9.24  -4.63   2.30 
1973 04   9.31  -2.02   3.64 
1973 05  20.11   3.19  11.65 
1973 06  24.56   8.60  16.58 
1973 07  27.84   9.35  18.59 
1973 08  28.17  10.78  19.47 
1973 09  20.07   4.34  12.20 
1973 10  15.06   -.75   7.15 
1973 11  -4.35 -14.94  -9.64 
1973 12  -5.48 -15.25 -10.36 
1974 01  -9.09 -22.50 -15.79 
1974 02  -3.39 -16.06  -9.72 
1974 03  -3.05 -15.81  -9.43 
1974 04  10.78   -.85   4.96 
1974 05  14.97   3.01   8.99 
1974 06  24.77   9.71  17.24 
1974 07  26.40  12.27  19.33 
1974 08  21.85   8.93  15.39 
1974 10  16.68   -.31   8.18 
1974 11   5.60  -7.76  -1.08 
1974 12   1.31 -10.21  -4.44 
1975 01  -4.59 -16.46 -10.53 
1975 02  -8.47 -19.76 -14.12 
1975 03  -1.65 -11.86  -6.75 
