1951 09 24.22   9.74  16.98 
1951 10 22.07   4.90  13.48 
1951 12  7.69  -6.43    .63 
1952 01  9.31  -5.32   1.99 
1952 02 11.27  -5.83   2.72 
1952 03 99.99  -3.46 -99.99 
1952 04 20.87   -.12  10.37 
1960 09 24.29  11.58  17.93 
1960 10 19.76   4.78  12.27 
1960 11 13.37  -1.70   5.83 
1960 12  2.90 -10.77  -3.93 
1961 02  9.55  -3.09   3.23 
1961 09 25.88  11.02  18.45 
1961 10 18.39   2.59  10.49 
1961 11 12.15   1.80   6.97 
1961 12  6.75  -5.25    .75 
1962 01  4.83  -6.13   -.65 
1962 02  8.71  -3.33   2.69 
1962 03 10.07  -2.33   3.87 
1962 04 15.29   1.02   8.15 
1962 05 25.50   9.01  17.25 
1962 06 25.67  11.86  18.76 
1962 07 26.40  13.05  19.72 
1962 08 27.06  12.33  19.69 
1962 09 22.08   8.72  15.40 
1962 10 18.92   4.85  11.88 
1962 11 10.53  -1.38   4.57 
1962 12  2.90  -8.57  -2.83 
1963 01  5.00 -11.53  -3.26 
1963 02  3.75 -11.69  -3.96 
1963 06 26.05 -99.99 -99.99 
1963 07 26.86 -99.99 -99.99 
1963 10 22.57   2.62  12.59 
1963 11 11.40    .46   5.93 
1963 12   .57  -9.27  -4.35 
1964 01  7.92  -6.89    .51 
1964 02  3.40  -7.93  -2.26 
1964 03 12.20  -2.28   4.96 
1964 04 18.26   4.26  11.26 
1964 05 24.19   7.41  15.80 
1964 06 25.86  11.57  18.71 
1964 07 27.71  13.14  20.42 
1964 08 25.74  12.42  19.08 
1964 09 24.53   8.85  16.69 
1964 10 16.86   1.22   9.04 
1964 11 15.59   -.46   7.56 
1964 12  8.74  -2.59   3.07 
1965 01  5.50  -6.20   -.34 
1965 02  7.74  -7.01    .36 
1965 03  9.28  -2.84   3.21 
1965 04 18.01   2.87  10.44 
1965 05 25.33   8.85  17.09 
1965 06 25.06  11.20  18.12 
1965 07 26.83  13.53  20.18 
1965 08 26.68  12.25  19.46 
1965 09 24.97  11.70  18.33 
1965 10 16.81   3.38  10.09 
1966 02  6.94 -99.99 -99.99 
1966 06 27.88   9.17  18.52 
1966 07 28.54  12.81  20.67 
1966 08 26.27  11.78  19.02 
1966 09 21.76   8.72  15.24 
1966 10 17.54   1.78   9.66 
1966 11 13.97  -2.23   5.87 
1966 12  4.42  -4.85   -.21 
1967 01  8.64  -4.67   1.98 
1967 02  4.81  -8.37  -1.78 
1967 03 14.88   -.70   7.09 
1967 04 19.89   3.65  11.77 
1967 05 19.53   5.55  12.54 
1967 06 26.50  10.85  18.67 
1967 07 25.56  11.44  18.50 
1967 08 24.28  12.05  18.16 
1967 09 22.08   5.20  13.64 
1967 10 18.76   4.23  11.50 
1967 11  8.93  -2.78   3.07 
1967 12  9.10  -3.61   2.74 
1968 01  4.31 -10.18  -2.93 
1968 03 14.01  -2.57   5.72 
1968 04 18.10   2.33  10.22 
1968 05 20.39   6.21  13.29 
1968 06 26.54  11.38  18.96 
1968 07 27.33  13.15  20.24 
1968 08 27.16 -99.99 -99.99 
1968 10 19.20   4.42  11.82 
1968 11 10.77  -2.04   4.36 
1969 02  5.37 -99.99 -99.99 
1969 03  8.35  -5.89   1.23 
1969 04 20.82   4.03  12.42 
1969 05 24.71   7.77  16.24 
1969 06 26.56  11.03  18.79 
1969 07 29.08  15.00  22.04 
1969 08 26.24  13.28  19.76 
1970 03  8.30 -99.99 -99.99 
1970 04 19.14   3.01  11.07 
1970 05 25.30   8.10  16.70 
1970 06 25.58 -99.99 -99.99 
1970 07 28.88  14.20  21.54 
1970 08 27.76  14.21  20.98 
1970 09 26.10  12.55  19.32 
1970 10 19.36   7.12  13.24 
1970 11 11.56    .92   6.24 
1971 02  8.41  -5.31   1.55 
1971 03  9.93  -5.23   2.35 
1971 04 19.33  -1.51   8.91 
1971 05 20.90   5.23  13.06 
1971 06 28.00  12.26  20.13 
1971 07 26.78  11.59  19.18 
1971 08 26.51  11.83  19.17 
1971 09 24.89  12.14  18.51 
1971 10 22.38   9.47  15.92 
1971 11 12.10  -1.22   5.44 
1971 12 12.08 -99.99 -99.99 
1972 01  8.63  -5.18   1.72 
1972 02  6.47  -7.14   -.33 
1972 03 12.96  -2.02   5.47 
1972 04 17.70   1.73   9.71 
1972 05 22.58 -99.99 -99.99 
1972 06 22.84   8.93  15.89 
1972 07 26.02  12.59  19.30 
1972 08 24.60  14.21  19.40 
1972 09 23.16  10.51  16.83 
1972 10 15.71   3.31   9.51 
1972 11  9.97   -.86   4.55 
1972 12  9.26  -1.78   3.74 
1973 01  7.40  -7.07    .16 
1973 02  6.19 -99.99 -99.99 
1973 03 15.38   1.74   8.56 
1974 02  6.92  -4.58   1.17 
1974 03 14.50    .15   7.32 
1974 04 19.36   3.14  11.25 
1974 08 25.58  11.35  18.46 
1974 09 17.52   7.27  12.39 
1974 12  4.79  -4.71    . 3 
1975 02  7.46  -4.66   1.40 
1975 03  9.30  -3.13   3.08 
1975 04 15.24   -.71   7.26 
1975 06 25.37  11.41  18.39 
1975 09 21.92   9.39  15.65 
1975 10 20.58   5.17  12.87 
1975 11 99.99    .54 -99.99 
1976 01  4.65  -7.17  -1.26 
1976 02 12.40  -2.56   4.92 
1976 03 16.68   -.20   8.24 
1976 04 20.44    .33  10.38 
1976 05 21.73   4.91  13.32 
1976 06 25.86  12.08  18.97 
1976 07 25.92  11.99  18.95 
1976 08 25.60  11.54  18.57 
1976 10 15.11   1.55   8.33 
1977 01 -2.62 -14.75  -8.68 
1977 02 99.99 -10.53 -99.99 
1977 04 20.17   4.11  12.14 
1977 05 99.99   8.68 -99.99 
1977 06 21.66  10.99  16.32 
1977 07 27.75  14.73  21.24 
1977 08 27.05  14.04  20.54 
1977 09 99.99  12.97 -99.99 
