1956 11   2.11  -4.94  -1.41 
1958 05  20.12   1.96  11.04 
1958 06  21.58   5.00  13.29 
1958 07  23.66   7.92  15.79 
1958 08  24.65   6.38  15.51 
1958 09  15.50 -99.99 -99.99 
1958 12   1.42 -99.99 -99.99 
1959 01 -11.65 -23.69 -17.67 
1959 02  -1.20 -99.99 -99.99 
1959 03   6.88  -5.05   0.91 
1959 04  11.04  -3.70   3.67 
1959 05  14.90 -99.99 -99.99 
1959 06  18.62 -99.99 -99.99 
1959 07  24.47   6.59  15.53 
1959 08  18.16   4.94  11.55 
1959 09  14.32   2.05   8.18 
1959 10   7.59  -1.69   2.95 
1959 11   1.46  -9.53  -4.03 
1959 12   2.69  -7.38  -2.34 
1960 01  -3.04 -17.57 -10.30 
1960 02   -.56 -12.33  -6.44 
1960 03   2.87 -11.88  -4.50 
1960 04  12.22  -3.23   4.49 
1960 05  13.85   -.39   6.73 
1960 06  17.57   4.65  11.11 
1960 07  26.11   8.05  17.08 
1960 08  20.61   6.59  13.60 
1960 09  17.62   1.13   9.37 
1960 10  12.91   0.68   6.79 
1960 11   1.65  -9.89  -4.12 
1960 12   1.03 -10.10  -4.53 
1961 01   1.15 -10.96  -4.90 
1961 02   1.21 -12.04  -5.41 
1961 03   6.04  -7.48   -.72 
1961 04   9.37  -4.59   2.38 
1961 05  16.64   2.08   9.35 
1961 06  24.30   6.52  15.41 
1961 07  23.55   8.67  16.11 
1961 08  25.45   6.50  15.97 
1961 09  14.54  -0.08   7.23 
1961 10   9.53  -3.60   2.96 
1961 11   0.56 -11.60  -5.52 
1961 12  -6.52 -18.39 -12.45 
1962 01  -2.45 -14.82  -8.63 
1962 02  -3.64 -17.69 -10.66 
1962 03   0.99 -12.94  -5.97 
1962 04  12.96  -2.44   5.26 
1962 05  14.19   0.52   7.35 
1962 06  19.58   4.85  12.21 
1962 07  21.10   6.22  13.66 
1962 08  20.77   6.11  13.44 
1962 09  18.34   1.71  10.02 
1962 10  12.74   0.34   6.54 
1962 11   5.47  -5.53  -0.03 
1962 12   -.40 -11.37  -5.88 
1963 01  -6.92 -18.27 -12.59 
1963 02   3.23 -10.10  -3.43 
1963 03   4.30  -6.81  -1.25 
1963 04   9.97  -2.85   3.56 
1963 05  15.88   0.07   7.97 
1963 06  19.96   3.75  11.86 
1963 07  22.53   7.60  15.06 
1963 08  22.44   7.38  14.91 
1963 09  19.61   5.61  12.61 
1963 10  12.70   -.81   5.94 
1963 11   -.76 -11.46  -6.11 
1963 12  -2.03 -11.81  -6.92 
1964 01  -1.95 -11.05  -6.50 
1964 02   4.94  -3.58   0.68 
1964 03   1.44 -11.11  -4.83 
1964 04   8.62  -4.34   2.13 
1964 05  14.70 -99.99 -99.99 
1964 06  20.36 -99.99 -99.99 
1964 07  23.02   6.22  14.62 
1964 08  19.78   5.02  12.40 
1964 09  12.72   0.63   6.67 
1964 10  14.10  -1.61   6.24 
1964 11  -2.16 -10.47  -6.31 
1964 12 -12.49 -23.00 -17.74 
1965 01  -7.33 -16.71 -12.02 
1965 02  -1.58 -13.82  -7.70 
1965 03   0.32 -13.27  -6.47 
1965 04   9.71  -3.68   3.01 
1965 05  14.70   1.95   8.32 
1965 06  19.25   5.24  12.24 
1965 07  22.81   7.70  15.25 
1965 08  22.92   8.89  15.90 
1965 09  10.97   0.94   5.95 
1965 10  13.62   0.52   7.07 
1965 11  -1.25  -8.49  -4.87 
1965 12  -4.42 -99.99 -99.99 
1966 01 -14.20 -24.29 -19.24 
1966 02   -.61 -11.83  -6.22 
1966 03   4.58  -9.79  -2.60 
1966 04   5.97  -5.37   0.29 
1966 05  16.28   1.98   9.13 
1966 06  17.54   4.13  10.84 
1966 07  20.09   7.84  13.96 
1966 08  19.81   6.02  12.91 
1966 09  18.14   4.21  11.17 
1966 10   8.77   -.83   3.97 
1966 11  -3.47 -12.90  -8.18 
1966 12  -3.32 -12.44  -7.87 
1967 01  -7.53 -16.40 -11.96 
1967 02   2.50  -7.89  -2.69 
1967 03  -1.74 -12.59  -7.16 
1967 04   7.71  -4.61   1.55 
1967 05  13.79   1.25   7.52 
1967 06  19.75   5.23  12.49 
1967 07  22.37   6.37  14.37 
1967 08  25.10   7.52  16.31 
1967 09  22.01   4.64  13.32 
1967 10   9.35   -.54   4.40 
1967 11 -99.99  -6.25 -99.99 
1967 12  -2.90 -13.58  -8.24 
1968 01  -5.18 -16.56 -10.87 
1968 02   0.57 -13.79  -6.61 
1968 03   5.87  -5.21   0.32 
1968 04   8.03  -4.08   1.97 
1970 01  -9.57 -19.70 -14.64 
1970 02   4.21  -7.32  -1.55 
1970 03   3.87  -7.73  -1.93 
1970 04   8.50  -3.96   2.27 
1970 05  15.93   0.36   8.14 
1970 06  23.05   5.59  14.32 
1970 07  23.96   7.21  15.58 
1970 08  23.16   5.95  14.55 
1970 09  15.74   1.20   8.47 
1970 10  11.57  -2.69   4.43 
1970 11  -1.67 -12.97  -7.32 
1970 12  -7.54 -19.56 -13.54 
1971 01  -9.56 -20.19 -14.87 
1972 03   4.42  -8.89  -2.23 
1972 04   8.14  -5.52   1.31 
1972 05  17.15   0.96   9.05 
1972 06  19.21   6.35  12.78 
1972 07  19.43   6.78  13.10 
1972 08  23.71   7.34  15.52 
1972 09  10.20   0.40   5.30 
1972 10   9.12  -3.26   2.92 
1972 11   2.05  -6.95  -2.44 
1972 12  -6.96 -19.14 -13.04 
1973 01  -2.20 -14.30  -8.25 
1973 02  -1.45 -12.80  -7.12 
1973 03   5.68  -6.01   -.16 
1973 04   8.96  -2.98   2.99 
1973 07  22.20   5.35  13.77 
1973 10   8.14  -2.44   2.85 
1973 11  -9.04 -18.60 -13.82 
1973 12  -2.91 -12.45  -7.68 
1974 01  -9.72 -21.83 -15.77 
1974 02   0.26 -12.63  -6.18 
1974 03   0.04 -14.75  -7.35 
1974 04  11.42  -2.96   4.23 
1974 05  12.30   0.12   6.21 
1974 06  20.80   4.17  12.48 
1974 07  21.29   4.32  12.80 
1974 08  20.31   4.69  12.50 
1974 09  16.24   1.00   8.62 
1974 10  13.50  -1.31   6.09 
1974 11   3.34  -8.50  -2.58 
1974 12   2.01  -8.30  -3.14 
1975 01  -3.44 -14.14  -8.79 
1975 02  -6.81 -19.11 -12.96 
1975 03   1.23 -11.33  -5.05 
1975 04   8.37  -7.11   0.62 
1975 05  14.57   -.25   7.16 
1975 06  17.54   3.83  10.68 
1975 07  24.45   8.06  16.25 
1975 08  17.75   3.28  10.51 
1975 09  19.87   1.08  10.47 
1975 10   8.85  -3.34   2.75 
1975 11   0.50 -10.59  -5.04 
1976 02   0.61 -13.11  -6.25 
1976 03   2.53  -9.46  -3.46 
1976 04  12.61  -4.11   4.25 
1976 05  16.57   0.43   8.50 
1976 06  17.17   2.43   9.80 
1976 07  21.13   5.81  13.46 
1976 08  20.15   5.92  13.03 
1976 09  19.37   2.93  11.15 
1976 10  10.72  -1.86   4.43 
