1965 12  -4.89 -15.06  -9.97 
1966 01 -16.91 -26.04 -21.47 
1966 02  -2.92 -15.33  -9.12 
1966 03   2.72 -99.99 -99.99 
1966 04 -99.99  -4.59 -99.99 
1966 05  17.25 -99.99 -99.99 
1966 07  21.60  10.41  16.00 
1966 08 -99.99   8.39 -99.99 
1966 11  -3.50 -99.99 -99.99 
1966 12  -4.60 -13.45  -9.02 
1967 01 -99.99 -19.25 -99.99 
1967 02  -2.32 -14.13  -8.22 
1967 03  -4.67 -14.84  -9.75 
1967 04   2.94  -5.45  -1.25 
1967 05  14.37   2.81   8.59 
1967 06 -99.99   6.67 -99.99 
1967 07  24.34   9.47  16.91 
1967 08  25.88   9.84  17.86 
1967 09 -99.99   7.05 -99.99 
1967 10  11.63   -.33   5.65 
1967 11   2.77  -7.08  -2.15 
1967 12  -3.04 -13.95  -8.49 
1968 01 -99.99 -17.76 -99.99 
1968 02 -99.99 -11.07 -99.99 
1968 03   6.41  -3.74   1.33 
1968 04   8.51  -3.47   2.52 
1968 05  15.93   2.10   9.02 
1968 06 -99.99   6.76 -99.99 
1968 07  23.18 -99.99 -99.99 
1968 08  19.54   7.76  13.65 
1968 09  15.63   5.02  10.32 
1968 10  10.30   -.86   4.72 
1968 11   2.91  -6.95  -2.02 
1968 12 -10.71 -18.86 -14.78 
1969 01 -22.68 -29.56 -26.12 
1969 02  -7.98 -17.76 -12.87 
1969 03   -.84 -11.70  -6.27 
1969 04  12.91   -.29   6.31 
1969 05  17.61   3.48  10.54 
1969 06  20.43   7.52  13.97 
1969 07  21.59   8.75  15.17 
1969 08  23.79   8.22  16.00 
1969 09  16.09   5.09  10.59 
1969 10   6.63  -3.63   1.50 
1969 11   4.67  -5.78   -.55 
1969 12  -1.32 -10.16  -5.74 
1970 01 -11.31 -20.61 -15.96 
1970 02   -.25 -10.79  -5.52 
1970 04   8.35  -2.75   2.80 
1970 05  16.24   3.08   9.66 
1970 06  23.68  10.59  17.13 
1970 07  23.99  10.84  17.41 
1970 08  24.44   8.92  16.68 
1970 09  16.02   2.77   9.39 
1970 10   9.05  -1.91   3.57 
1970 11  -4.46 -12.31  -8.38 
1970 12  -8.42 -19.03 -13.72 
1971 01 -11.57 -20.80 -16.18 
1971 02  -1.46 -11.70  -6.58 
1971 03  -1.23 -12.78  -7.00 
1971 04   8.68  -1.87   3.41 
1971 05  19.35   4.56  11.95 
1971 06  19.64   6.77  13.20 
1971 07  21.70 -99.99 -99.99 
1971 08  26.82  10.78  18.79 
1971 09  15.39   2.62   9.00 
1971 10  10.86  -3.15   3.85 
1971 11   1.03  -7.29  -3.13 
1971 12 -11.08 -99.99 -99.99 
1972 01 -99.99 -23.35 -99.99 
1972 02 -99.99 -18.94 -99.99 
1972 03  -0.05  -9.12  -4.58 
1972 04   8.60  -3.50   2.55 
1972 05  17.94   3.27  10.60 
1972 06 -99.99   8.29 -99.99 
1972 07  19.60   8.22  13.91 
1972 08  24.47  10.55  17.51 
1972 09  10.86   1.65   6.25 
1972 10   9.13  -3.54   2.79 
1972 11   0.73  -6.89  -3.08 
1972 12  -8.47 -18.85 -13.66 
1973 01  -4.23 -14.58  -9.40 
1973 02  -4.38 -13.83  -9.10 
1973 03   3.49  -6.65  -1.58 
1973 04   7.70  -2.76   2.46 
1973 06  20.15   7.65  13.90 
1973 07  22.72   7.22  14.96 
1973 08  21.52   7.65  14.58 
1973 09  16.98   3.93  10.45 
1973 10  10.89  -1.47   4.71 
1973 11  -8.96 -17.09 -13.02 
1973 12  -4.58 -14.63  -9.60 
1974 01 -12.36 -21.97 -17.16 
1974 02  -1.71 -12.54  -7.12 
1974 03  -3.09 -15.28  -9.18 
1974 04   9.21  -1.78   3.71 
1974 05  12.41   1.65   7.03 
1974 06  22.57   8.56  15.56 
1974 07  22.81   9.20  16.00 
1974 08  18.52   7.20  12.86 
1974 09  16.32   4.41  10.36 
1974 11   3.40  -7.50  -2.05 
1974 12   1.33  -8.72  -3.69 
1975 01  -5.28 -14.82 -10.05 
1975 02  -9.38 -18.76 -14.07 
1975 03  -3.09 -12.11  -7.60 
1975 04   3.91  -5.74   -.91 
1975 07  24.63  11.81  18.21 
1975 08  19.31   7.52  13.41 
1975 09  19.58   4.46  12.02 
1975 11   2.42  -8.43  -3.00 
1975 12  -3.98 -15.01  -9.49 
1976 01  -3.98 -15.33  -9.65 
