1951 08  20.95 -99.99 -99.99 
1952 11  -2.73 -99.99 -99.99 
1952 12  -6.34 -17.92 -12.13 
1953 01 -14.12 -26.50 -20.31 
1953 02  -4.53 -19.10 -11.81 
1953 03  -2.60 -17.10  -9.85 
1953 04   6.43  -6.00   0.21 
1953 05  17.03   2.44   9.73 
1953 06  19.74   6.64  13.19 
1953 07  23.28   8.56  15.92 
1953 08  22.84   9.72  16.28 
1953 09  17.40   2.14   9.76 
1953 10  14.48  -3.67   5.40 
1953 11   1.99  -9.63  -3.82 
1953 12  -4.66 -17.49 -11.07 
1954 01 -99.99 -37.25 -99.99 
1954 02  -3.05 -18.69 -10.87 
1954 03  -3.39 -20.15 -11.77 
1954 04   0.80 -10.45  -4.82 
1954 05  15.48   2.03   8.75 
1954 06  18.90   6.12  12.51 
1954 07  23.51   9.81  16.66 
1954 08  19.29   9.47  14.38 
1954 09  15.37   3.67   9.52 
1954 10  11.07  -3.85   3.61 
1954 11   4.94  -6.36   -.71 
1955 01  -8.24 -22.20 -15.22 
1955 02 -10.04 -27.69 -18.86 
1955 03  -7.52 -22.55 -15.03 
1955 04   8.42  -2.73   2.84 
1955 05  16.79   1.88   9.33 
1955 06  23.71   6.57  15.14 
1955 07  24.24  10.41  17.32 
1955 08  24.44   6.67  15.55 
1955 09  16.02   1.54   8.78 
1955 10  11.18  -3.55   3.81 
1955 11 -11.50 -22.73 -17.11 
1955 12 -14.99 -27.34 -21.16 
1956 01 -15.43 -27.20 -21.31 
1956 02 -10.21 -27.25 -18.73 
1956 03  -3.14 -18.37 -10.75 
1956 04   6.52  -8.18   -.83 
1956 05  20.00   2.96  11.48 
1956 06  22.68   8.55  15.61 
1956 07  23.70  10.24  16.97 
1956 08  22.80   8.72  15.76 
1956 09  15.54   1.84   8.68 
1956 10  10.77  -2.79   3.99 
1956 11   3.47  -9.56  -3.04 
1956 12  -9.63 -22.26 -15.94 
1957 01 -13.35 -27.45 -20.40 
1957 02  -8.04 -25.51 -16.77 
1957 04  11.25  -4.09   3.58 
1957 05  18.92   3.50  11.21 
1957 06  21.85   5.61  13.73 
1957 09  18.29   5.17  11.73 
1958 01  -5.04 -16.94 -10.99 
1958 02  -9.38 -23.65 -16.51 
1958 03   -.15 -13.65  -6.89 
1959 11  -1.63 -14.29  -7.96 
1959 12  -1.92 -16.51  -9.21 
1960 01 -12.67 -25.65 -19.16 
1960 02  -8.34 -21.24 -14.79 
1960 03  -3.28 -19.27 -11.27 
1960 04  12.76  -3.74   4.51 
1960 05  17.85   2.56  10.20 
1960 06 -99.99   7.52 -99.99 
1960 07  25.92  11.32  18.61 
1960 08  23.28  10.18  16.73 
1960 09  17.53   3.04  10.28 
1960 10 -99.99  -2.65 -99.99 
1961 04 -99.99  -5.27 -99.99 
1961 05 -99.99   3.49 -99.99 
1961 08  28.09   9.66  18.87 
1961 09 -99.99   -.97 -99.99 
1961 11  -3.02 -99.99 -99.99 
1961 12 -18.86 -28.78 -23.82 
1962 03  -3.08 -99.99 -99.99 
1962 04 -99.99  -2.55 -99.99 
1962 05  17.33   2.01   9.67 
1965 09  12.02   0.85   6.43 
1965 10  13.87  -1.76   6.05 
1965 11  -4.90 -14.11  -9.50 
1965 12  -8.14 -19.73 -13.93 
1966 01 -20.71 -31.95 -26.33 
1966 02  -9.27 -22.98 -16.12 
1966 03   -.40 -12.89  -6.64 
1966 04 -99.99  -3.76 -99.99 
1966 05  19.04   4.23  11.64 
1966 06 -99.99   6.52 -99.99 
1966 09  19.90   5.07  12.48 
1966 10  10.08  -3.59   3.24 
1966 11  -7.39 -16.69 -12.04 
1966 12  -8.57 -16.29 -12.43 
1967 01 -13.46 -23.17 -18.31 
1967 02  -9.07 -21.76 -15.41 
1967 03  -5.49 -17.29 -11.39 
1967 04   4.92  -6.91   -.99 
1967 05  17.32   1.62   9.47 
1967 07  25.01  10.05  17.53 
1967 08  25.15 -99.99 -99.99 
1967 09  22.87   4.64  13.75 
1967 10   8.43  -1.47   3.48 
1967 11   -.41  -9.14  -4.77 
1967 12  -9.82 -19.71 -14.77 
1968 02  -5.82 -18.57 -12.19 
1968 03   3.69  -7.27  -1.79 
1968 04  10.00  -3.37   3.31 
1968 05  17.12   2.49   9.80 
1968 06  21.63   6.55  14.09 
1968 07  23.36   9.27  16.31 
1968 08  19.50   6.81  13.15 
1968 09  15.32   4.50   9.91 
1968 10   8.96  -1.45   3.75 
1968 11   1.74  -7.07  -2.66 
1968 12 -12.67 -21.67 -17.17 
1969 01 -24.01 -36.24 -30.12 
1969 02  -9.08 -21.83 -15.45 
1969 03  -2.15 -16.26  -9.20 
1969 04  13.15   -.15   6.50 
1969 05  16.99   3.33  10.16 
1969 06  20.78   5.91  13.34 
1969 07  23.08   9.10  16.09 
1969 08  24.66   9.26  16.95 
1969 09  15.28   4.32   9.80 
1969 10   4.50  -3.97   0.26 
1969 11   1.90  -8.93  -3.51 
1970 01 -15.11 -25.90 -20.50 
1970 03  -4.09 -17.79 -10.94 
1970 04   9.89  -3.03   3.43 
1970 05  17.94   3.22  10.58 
1970 06  24.97  10.99  17.98 
