1951 12 16.87 -99.99 -99.99 
1952 01 19.37 -99.99 -99.99 
1952 02 18.68    .20   9.44 
1952 03 20.20   3.30  11.75 
1952 04 25.02   8.04  16.53 
1952 05 31.45  12.65  22.05 
1952 06 36.89  19.74  28.31 
1952 07 34.16  19.56  26.86 
1952 08 37.47  20.85  29.16 
1952 09 31.48  14.89  23.18 
1952 10 27.40   6.41  16.90 
1952 11 16.54 -99.99 -99.99 
1952 12 15.23  -2.55   6.33 
1953 01 20.00   2.66  11.33 
1953 02 99.99  -1.69 -99.99 
1953 03 23.47   3.96  13.71 
1953 04 26.56   6.56  16.56 
1953 05 30.06  12.68  21.37 
1953 06 38.08  20.76  29.42 
1953 07 36.72 -99.99 -99.99 
1953 08 35.43  18.37  26.90 
1953 09 33.72  12.78  23.25 
1953 10 26.48   8.85  17.66 
1953 11 20.25   1.55  10.90 
1953 12 12.32  -4.19   4.06 
1954 01 17.58    .42   9.00 
1954 02 21.65   2.57  12.11 
1954 03 21.88   4.85  13.36 
1954 04 28.98  11.11  20.04 
1954 05 29.71  13.31  21.51 
1954 06 35.64  19.04  27.34 
1954 07 37.20  20.77  28.98 
1954 08 34.16  20.32  27.24 
1954 09 33.50  17.12  25.32 
1954 10 26.39  11.33  18.86 
1954 11 20.95   2.94  11.94 
1954 12 15.93  -1.30   7.31 
1955 01 13.01  -1.14   5.93 
1955 02 16.24  -2.56   6.84 
1955 03 22.72   4.41  13.56 
1955 04 27.63   8.39  18.01 
1955 05 30.86  13.75  22.30 
1955 06 34.71  17.00  25.85 
1955 07 33.84  19.87  26.86 
1955 08 34.65  19.70  27.18 
1955 09 32.38  16.54  24.46 
1955 10 25.74   9.46  17.60 
1955 11 18.75   3.46  11.10 
1955 12 17.76    .63   9.19 
1956 01 16.18   -.57   7.80 
1956 02 14.84  -2.25   6.29 
1956 03 24.01   3.67  13.84 
1956 04 25.20   6.84  16.02 
1956 05 33.89  14.18  24.03 
1956 06 36.81  20.17  28.49 
1956 07 36.28  20.54  28.41 
1956 08 35.16  19.07  27.12 
1956 09 34.12  14.84  24.48 
1956 10 28.57   9.41  18.99 
1956 11 18.79   -.29   9.25 
1956 12 16.25   -.39   7.93 
1957 01 16.21    .45   8.33 
1957 02 20.49   6.42  13.45 
1957 03 21.35   5.26  13.30 
1957 04 26.02   8.60  17.31 
1957 05 28.39  13.12  20.75 
1957 06 35.20  18.46  26.83 
1957 07 37.21  21.24  29.22 
1957 08 35.38  20.54  27.96 
1957 09 32.09  15.09  23.59 
1957 10 21.74  10.41  16.07 
1957 11 14.67   2.86   8.76 
1957 12 17.27   -.27   8.50 
1958 01 11.89  -2.08   4.90 
1958 02 15.93    .93   8.43 
1958 03 16.37   3.20   9.79 
1958 04 23.87   8.22  16.04 
1958 05 31.19  14.20  22.69 
1958 06 36.48  19.61  28.04 
1958 07 37.24  21.16  29.20 
1958 08 35.28  19.73  27.50 
1958 09 28.78  16.84  22.81 
1958 10 21.28  10.57  15.92 
1958 11 19.17   3.19  11.18 
1958 12 16.18  -2.26   6.96 
1959 01 16.20  -3.08   6.56 
1959 02 16.04    .58   8.31 
1959 03 21.68   1.63  11.65 
1959 04 25.21   7.96  16.58 
1959 05 30.57  13.53  22.05 
1959 06 35.06  17.45  26.26 
1959 07 34.25  19.09  26.67 
1959 08 35.65  20.37  28.01 
1959 09 33.81  16.37  25.09 
1959 10 26.56   8.47  17.52 
1959 11 18.43    .86   9.64 
1959 12 15.00    .-5   7.47 
1960 01 13.45  -1.84   5.80 
1960 02 15.42   -.69   7.36 
1960 03 19.29   2.48  10.88 
1960 04 27.94   8.89  18.42 
1960 05 30.39  12.91  21.65 
1960 06 36.41  18.93  27.67 
1960 07 33.54  19.20  26.37 
1960 08 34.03  18.17  26.09 
1960 09 32.24  15.05  23.64 
1960 10 25.08   8.72  16.90 
1960 11 19.67   2.74  11.20 
1960 12  8.93  -2.99   2.97 
1961 01 11.16  -3.68   3.73 
1961 02 16.57   1.46   9.01 
1961 03 20.33   4.84  12.58 
1961 04 25.44   6.78  16.11 
1961 05 31.63  11.89  21.76 
1961 06 34.22  16.18  25.20 
1961 07 34.90  17.60  26.25 
1961 08 34.48  17.26  25.87 
1961 09 30.79  13.46  22.12 
1961 10 27.17   5.88  16.52 
1961 11 13.94    .93   7.43 
1961 12 14.57  -1.44   6.56 
1962 01 10.83  -5.33   2.75 
1962 02 21.09   2.88  11.98 
1962 03 18.56   1.82  10.18 
1962 04 25.99   9.18  17.59 
1962 05 33.05  13.68  23.36 
1962 06 34.27  16.44  25.35 
1962 07 34.55  19.70  27.13 
1962 08 36.50  18.54  27.52 
1962 09 30.37  16.23  23.30 
1962 10 26.02   9.22  17.62 
1962 11 20.16   1.76  10.96 
1962 12 13.85  -1.65   6.10 
1963 01 11.80  -6.65   2.57 
1963 02 17.46    .-1   8.72 
1963 03 21.82   2.98  12.40 
1963 04 27.47  10.91  19.18 
1963 05 31.06  14.17  22.61 
1963 06 34.74  18.09  26.41 
1963 07 36.95  20.70  28.82 
1963 08 34.13  19.21  26.67 
1963 09 31.13  15.29  23.21 
1963 10 28.45   8.60  18.52 
1963 11 20.87   1.26  11.06 
1963 12 11.13  -4.85   3.14 
1964 01 13.34  -4.46   4.44 
1964 02 12.74  -3.99   4.37 
1964 03 20.43   2.69  11.56 
1964 04 26.51   7.84  17.17 
1964 05 31.79  14.66  23.22 
1964 06 34.56  18.18  26.37 
1964 07 36.72  21.12  28.92 
1964 08 35.73  19.87  27.80 
1964 09 29.22  16.04  22.63 
1964 10 26.31   7.22  16.76 
1964 12 14.44  -2.00   6.22 
1965 01 15.87   -.41   7.73 
1965 02 14.46  -2.56   5.95 
1965 03 16.37   -.71   7.83 
1965 04 27.34   9.35  18.34 
1965 05 29.88  13.75  21.81 
1965 06 33.87  18.11  25.99 
1965 07 36.06  19.85  27.95 
1965 08 33.15  17.99  25.57 
1965 09 30.64  14.93  22.78 
1965 10 26.51   7.02  16.76 
1965 11 22.25   4.64  13.44 
1965 12 14.79   -.61   7.09 
1966 01 10.25  -5.47   2.39 
1966 02 13.65  -3.81   4.92 
1966 03 22.03   1.65  11.84 
1966 04 24.64   8.47  16.55 
1966 05 29.12  13.98  21.55 
1966 06 32.96  16.52  24.74 
1966 07 37.15  21.30  29.22 
1966 08 32.14  18.36  25.25 
1966 09 29.73  15.76  22.74 
1966 10 24.37   6.00  15.18 
1966 12 14.14  -4.39   4.87 
1967 01 16.00  -4.67   5.66 
1967 03 24.64   5.17  14.90 
1967 04 28.62  11.01  19.81 
1967 05 30.28  11.31  20.79 
1967 06 33.64  17.89  25.76 
1967 07 34.53  20.03  27.28 
1967 08 33.59  18.70  26.15 
1967 09 28.94  15.65  22.29 
1967 10 27.25   7.81  17.53 
1968 01 12.42   -.30   6.06 
1968 02 14.64    .71   7.67 
1968 03 17.75   4.02  10.88 
1968 04 23.62   8.06  15.84 
1968 05 29.70  13.67  21.68 
1968 06 35.28  18.46  26.87 
1968 07 32.81  19.65  26.23 
1968 08 33.08  19.33  26.20 
1968 09 30.29  13.10  21.69 
1968 10 27.37   8.81  18.09 
1968 11 16.87   1.65   9.26 
1968 12 14.75  -2.77   5.99 
1969 01 17.01    .14   8.57 
1969 03 16.04    .55   8.29 
1969 04 26.79  10.16  18.47 
1969 05 31.15  13.70  22.42 
1969 06 34.07  18.17  26.12 
1969 07 36.59  21.67  29.13 
1969 08 35.86  21.15  28.50 
1969 09 30.59  16.79  23.69 
1969 10 22.89   9.49  16.18 
1969 11 17.12   2.86   9.99 
1969 12 15.48   -.31   7.58 
1970 02 17.08   1.60   9.34 
1970 03 17.06   1.93   9.49 
1970 04 25.58   7.79  16.68 
1970 05 30.79  11.73  21.26 
1970 06 33.37  17.37  25.37 
1970 07 34.68  19.94  27.31 
1970 08 35.48  19.14  27.31 
1970 09 29.82  16.37  23.09 
1970 10 21.83   6.97  14.40 
1970 12 18.48   -.58   8.95 
1971 01 15.59  -2.21   6.69 
1971 02 16.57  -1.50   7.53 
1971 03 23.05   3.25  13.15 
1971 04 25.39   7.81  16.60 
1971 05 30.08  13.70  21.89 
1971 06 35.25  17.70  26.48 
1971 07 35.52  20.37  27.95 
1971 08 99.99  18.24 -99.99 
1971 09 29.38  14.33  21.85 
1971 10 24.06   9.55  16.80 
1971 11 19.92   2.96  11.44 
1971 12 14.59   -.43   7.08 
1972 02 18.60   -.65   8.97 
1972 03 24.97   5.21  15.09 
1972 04 28.94   9.02  18.98 
1972 05 29.44  12.92  21.18 
1972 06 33.93  17.40  25.66 
1972 07 34.34  18.51  26.43 
1972 08 32.50  17.89  25.19 
1972 09 29.93  16.06  22.99 
1972 10 24.75   9.54  17.14 
1973 01 10.61  -2.63   3.98 
1973 02 13.41   -.47   6.47 
1973 03 19.08   3.09  11.08 
1973 04 22.88   4.98  13.92 
1973 05 28.58  11.48  20.02 
1973 06 33.63  16.09  24.86 
1973 07 33.91  19.20  26.55 
1973 08 34.73  17.86  26.29 
1973 09 29.63  14.90  22.26 
1973 10 27.04   7.71  17.37 
1973 12 18.12  -3.79   7.16 
1974 01 13.82  -3.24   5.29 
1974 03 25.34   5.09  15.21 
1974 05 33.36  15.20  24.28 
1974 06 35.77  17.53  26.65 
1974 07 35.50  19.48  27.49 
1974 08 31.33  18.21  24.77 
1974 09 24.76  12.86  18.81 
1974 10 22.62   9.87  16.24 
1974 11 17.00   2.84   9.92 
1974 12 12.91   -.99   5.96 
1975 01 13.95  -1.61   6.17 
1975 02 15.66    .23   7.94 
1975 03 20.26   2.27  11.26 
1975 04 24.40   5.57  14.98 
1975 05 29.20  10.55  19.87 
1975 06 35.68  16.23  25.95 
1975 07 31.89  18.53  25.21 
1975 08 34.41  17.77  26.09 
1975 09 28.24  12.94  20.59 
1975 10 27.06   7.13  17.09 
1976 01 14.15  -3.25   5.45 
1976 02 21.10   1.76  11.43 
1976 03 21.42   3.11  12.26 
1976 04 26.12   8.49  17.30 
1976 05 27.62  11.83  19.72 
1976 06 34.59  17.57  26.08 
1976 07 32.16  18.54  25.35 
1976 08 34.46  17.85  26.15 
1976 09 28.18  14.80  21.49 
1976 10 21.44   4.66  13.05 
1976 11 13.42  -1.44   5.99 
1977 01 10.25  -4.14   3.05 
1977 02 17.41    .-1   8.70 
1977 04 24.77   8.31  16.54 
1977 05 31.03  14.29  22.66 
1977 06 35.48  18.15  26.81 
1977 09 34.50  16.81  25.65 
1977 10 25.65   9.62  17.63 
1977 12 18.03   -.96   8.53 
1978 01 11.42  -4.14   3.64 
1978 02 14.28   -.90   6.69 
1978 04 28.70   9.60  19.15 
1978 05 30.58  13.31  21.94 
1978 06 35.43  17.92  26.67 
1978 07 36.56  20.21  28.39 
1978 08 33.98  18.56  26.27 
1978 09 26.94  14.72  20.83 
1978 10 23.82   8.68  16.25 
1978 12 12.86  -2.79   5.03 
1979 01  8.47  -4.34   2.06 
