1955 03 -6.40 -18.50 -12.45 
1955 04  2.05 -10.18  -4.06 
1955 05  6.72  -1.73   2.49 
1955 06 17.69   5.70  11.69 
1955 07 19.25   8.55  13.90 
1955 08 18.23   8.05  13.14 
1955 09  9.85   2.28   6.07 
1955 10  5.45  -1.64   1.90 
1955 11 -1.57  -7.19  -4.38 
1955 12 10.56 -19.37 -14.96 
1956 01 -7.97 -14.84 -11.40 
1956 02 11.68 -25.30 -18.49 
1956 03 -8.79 -21.47 -15.12 
1956 04   .65  -8.74  -4.04 
1956 05  3.53  -7.25  -1.86 
1956 06 11.15    .89   6.02 
1956 07 16.36   7.74  12.05 
1956 08 14.66   6.44  10.55 
1956 09 10.36   1.61   5.98 
1956 10  7.03  -1.77   2.63 
1956 11 -3.04 -12.13  -7.58 
1956 12 14.49 -26.15 -20.32 
1957 01 19.60 -33.55 -26.57 
1957 02 12.44 -24.10 -18.27 
1957 03 -3.01 -11.05  -7.03 
1957 04   .35 -99.99 -99.99 
1957 05  3.51  -4.84   -.66 
1957 06 13.10   2.93   8.01 
1957 07 17.18   8.92  13.05 
1957 08 15.25   6.33  10.79 
1957 09 10.87   3.11   6.99 
1957 10  5.45  -2.00   1.72 
1957 11 -2.53  -9.21  -5.87 
1957 12 99.99 -19.04 -99.99 
1958 01 -7.22 -18.78 -13.00 
1958 02 -7.46 -16.14 -11.79 
1958 03   . 7  -9.55  -4.74 
1958 04  3.00  -7.37  -2.18 
1958 05  8.79   -.86   3.96 
1958 06 12.05   2.82   7.43 
1958 07 17.99   7.70  12.84 
1958 08 15.92   7.42  11.67 
1958 09 10.44   2.50   6.47 
1958 10  2.62  -4.69  -1.03 
1958 11 -4.63 -12.76  -8.69 
1958 12 16.64 -26.26 -21.45 
1959 01 10.59 -20.21 -15.40 
1959 02 17.62 -28.84 -23.23 
1959 03 -8.64 -21.57 -15.11 
1959 04  1.50  -9.74  -4.12 
1959 05  7.98  -1.13   3.42 
1959 06 16.60   5.19  10.89 
1959 07 21.43  10.71  16.07 
1959 08 17.96   7.83  12.90 
1959 09 12.28   3.88   8.08 
1959 10  2.59  -3.13   -.27 
1959 11 -4.21 -12.56  -8.38 
1959 12 11.16 -19.76 -15.46 
1960 01 12.17 -21.99 -17.08 
1960 02 -4.14 -11.58  -7.85 
1960 03 99.99 -19.54 -99.99 
1960 04  -.58  -8.06  -4.32 
1960 05 11.47    .25   5.86 
1960 06 15.30   6.12  10.71 
1960 07 17.91   8.78  13.34 
1960 08 17.67   8.22  12.94 
1960 09 11.75   3.24   7.49 
1960 10  3.77  -1.90    .93 
1960 11 -2.44 -11.10  -6.77 
1960 12 -9.43 -21.09 -15.26 
1961 01 17.66 -27.62 -22.64 
1961 02 14.03 -28.29 -21.16 
1961 03 -5.80 -20.31 -13.05 
1961 04  3.32  -5.66  -1.16 
1961 05  7.16  -1.99   2.58 
1961 06 14.37   4.59   9.47 
1961 07 18.51   8.35  13.43 
1961 08 17.48   7.00  12.24 
1961 09 13.88   3.43   8.65 
1961 10  5.51  -2.35   1.57 
1961 11  -.85  -7.22  -4.03 
1961 12 -7.26 -13.38 -10.32 
1962 01 17.17 -28.61 -22.89 
1962 02 16.62 -30.24 -23.43 
1962 03 -1.37  -9.85  -5.61 
1962 04 -2.02 -13.39  -7.70 
1962 05  6.13  -3.15   1.49 
1962 06 15.11   3.42   9.26 
1962 07 17.01   7.81  12.41 
1962 08 17.81   8.35  13.08 
1962 09 10.24   2.67   6.45 
1962 10  4.36  -2.56    .90 
1962 11 -2.89 -11.63  -7.26 
1962 12 10.63 -20.71 -15.67 
1963 01 10.99 -24.00 -17.49 
1963 02 14.91 -27.46 -21.18 
1963 03 -7.42 -21.37 -14.39 
1963 04   .84  -7.73  -3.44 
1963 05  7.94  -2.62   2.66 
1963 06 14.00   2.91   8.45 
1963 07 17.03   9.60  13.31 
1963 08 14.77   6.27  10.52 
1963 09  9.68    .85   5.27 
1963 10  5.74  -3.04   1.34 
1963 11  -.43  -8.04  -4.23 
1963 12 14.21 -24.15 -19.18 
1964 01 13.90 -25.85 -19.87 
1964 02 10.35 -20.75 -15.55 
1964 03 -6.80 -22.57 -14.68 
1964 04  2.24  -9.30  -3.53 
1964 05  7.12  -2.74   2.19 
1964 06 14.36   2.96   8.66 
1964 07 18.95   7.72  13.33 
1964 08 15.72   6.97  11.34 
1964 09 10.96   2.65   6.80 
1964 10  2.24  -5.17  -1.46 
1964 11 -3.96 -12.72  -8.34 
1964 12 10.70 -21.87 -16.28 
1965 01 14.03 -25.87 -19.95 
1965 02 10.85 -25.88 -18.36 
1965 03 -5.86 -17.01 -11.43 
1965 04   .-9 -11.85  -5.97 
1965 05  5.82  -2.85   1.48 
1965 06 13.95   2.98   8.46 
1965 07 16.70   6.55  11.62 
1965 08 15.26   5.66  10.46 
1965 09 10.93   2.29   6.61 
1965 10   .82  -6.44  -2.81 
1965 11 -5.57 -14.45 -10.01 
1965 12 11.29 -23.61 -17.45 
1966 01 10.41 -18.10 -14.25 
1966 02 10.18 -23.82 -17.00 
1966 03  -.79 -13.49  -7.14 
1966 04  1.47  -8.27  -3.40 
1966 05  6.20  -3.34   1.43 
1966 06 15.58   3.17   9.37 
1966 07 17.60   7.91  12.75 
1966 08 16.04   8.14  12.10 
1966 09 11.30   2.83   7.06 
1966 10  3.98  -2.29    .84 
1966 11  -.78  -8.02  -4.40 
1966 12 -8.53 -20.04 -14.28 
1967 01 13.92 -28.00 -20.96 
1967 02 14.22 -28.29 -21.25 
1967 03 -8.53 -25.78 -17.15 
1967 04  -.35 -16.62  -8.49 
1967 05  5.43  -2.19   1.61 
1967 06 16.77   4.06  10.41 
1967 07 20.93  10.34  15.63 
1967 08 18.66   8.67  13.66 
1967 09 13.02   2.91   7.96 
1967 10  5.08  -2.90   1.08 
1967 11 -1.95  -8.76  -5.35 
1967 12 -8.27 -19.44 -13.85 
1968 01 16.40 -27.05 -21.72 
1968 02 -9.82 -22.24 -16.02 
1968 03 -6.79 -21.04 -13.91 
1968 04  2.68  -7.37  -2.34 
1968 05  7.52  -2.99   2.26 
1968 06 13.20   2.48   7.84 
1968 07 17.93   7.09  12.51 
1968 08 13.02   4.88   8.95 
1968 09 15.78   5.94  10.86 
1968 10  6.47    .36   3.41 
1968 11 -5.72 -11.69  -8.70 
1968 12 -8.60 -16.59 -12.59 
1969 01 -8.10 -18.77 -13.43 
1969 02 -5.51 -18.76 -12.13 
1969 03 -3.98 -17.70 -10.84 
1969 04 -2.99 -18.87 -10.93 
1969 05  4.85  -4.17    .33 
1969 06 14.32   3.67   8.99 
1969 07 17.81   7.48  12.64 
1969 08 16.52   7.86  12.19 
1969 09  8.51    .61   4.56 
1969 10  1.24  -6.25  -2.50 
1969 11   .66  -6.55  -2.94 
1969 12 -6.75 -16.33 -11.54 
1970 01 15.61 -26.23 -20.92 
1970 02 11.44 -25.50 -18.46 
1970 03 -4.38 -17.15 -10.76 
1970 04   . 6 -12.74  -6.33 
1970 05  6.16  -3.50   1.33 
1970 06 13.19   2.16   7.67 
1970 07 19.60   9.10  14.35 
1970 08 18.58   9.27  13.92 
1970 09 10.73   1.71   6.22 
1970 10  6.70  -1.81   2.44 
1970 11 -2.22 -12.04  -7.13 
1970 12 14.94 -24.36 -19.65 
1971 01 13.20 -24.25 -18.72 
1971 02 11.68 -25.76 -18.72 
1971 03 -4.96 -14.66  -9.80 
1971 04  2.98  -5.38  -1.20 
1971 05  9.14   -.33   4.40 
1971 06 13.95   3.24   8.59 
1971 07 17.81   7.98  12.89 
1971 08 16.09   6.83  11.46 
1971 09 11.24   3.13   7.18 
1971 10  4.35  -2.72    .81 
1971 11 -4.57 -12.02  -8.29 
1971 12 16.76 -27.96 -22.36 
1972 01 14.64 -28.54 -21.59 
1972 02 16.18 -30.83 -23.50 
1972 03 -9.34 -23.43 -16.38 
1972 04   .-6 -13.70  -6.88 
1972 05  4.03  -8.38  -2.17 
1972 06 13.41   2.53   7.97 
1972 07 19.04   7.85  13.45 
1972 08 15.23   5.44  10.33 
1972 09 10.02   2.00   6.01 
1972 10  1.68  -6.80  -2.56 
1972 11 -6.16 -14.58 -10.37 
1972 12 18.29 -29.25 -23.77 
1973 01 14.84 -26.60 -20.72 
1973 02 12.89 -26.73 -19.81 
1973 03 -3.25 -17.04 -10.14 
1973 04   .72  -8.75  -4.01 
1973 05  8.43   -.79   3.82 
1973 06 16.87   6.54  11.70 
1973 07 19.92  11.16  15.54 
1973 08 18.10   8.18  13.14 
1973 09 10.78   2.10   6.44 
1973 10  3.75  -3.72    . 1 
1973 11 -4.19 -12.10  -8.14 
1973 12 -6.08 -16.59 -11.33 
1974 01 20.16 -31.85 -26.00 
1974 02 13.67 -26.16 -19.91 
1974 03 -9.05 -22.50 -15.77 
1974 04 -1.51 -14.72  -8.11 
1974 05  6.09  -2.96   1.56 
1974 06 17.42   4.37  10.89 
1974 07 18.02   7.07  12.54 
1974 08 16.37   6.34  11.36 
1974 09 10.48   1.16   5.82 
1974 10   .19  -8.26  -4.03 
1974 11 -3.52 -12.35  -7.93 
1974 12 -9.64 -19.92 -14.78 
1975 01 16.48 -30.66 -23.57 
1975 02 14.52 -27.35 -20.93 
1975 03 -5.66 -18.77 -12.21 
1975 04  -.57 -11.50  -6.03 
1975 05  8.06  -4.37   1.84 
1975 06 16.11   4.26  10.18 
1975 07 21.44  11.46  16.45 
1975 08 16.92   7.03  11.97 
1975 09 12.33   3.25   7.79 
1975 10  5.88  -3.21   1.33 
1975 11 -3.17 -11.41  -7.29 
1975 12 12.74 -25.43 -19.08 
1976 01 15.15 -27.78 -21.46 
1976 02 12.57 -27.46 -20.01 
1976 03 -9.00 -22.51 -15.75 
1976 04   . 2  -9.10  -4.54 
1976 05  9.30  -1.69   3.80 
1976 06 17.37   5.07  11.22 
1976 07 19.79   8.95  14.37 
1976 08 16.78   6.05  11.41 
1976 09  9.75   1.74   5.74 
1976 10  1.33  -5.16  -1.91 
1976 11 -5.37 -12.51  -8.94 
1976 12 11.88 -25.17 -18.52 
1977 01 11.60 -25.02 -18.31 
1977 02 10.57 -22.64 -16.60 
1977 04  1.07 -11.53  -5.23 
1977 05  6.59  -2.60   1.99 
