1957 10 10.66  -1.77   4.44 
1957 11 -2.08 -10.38  -6.23 
1957 12 -9.00 -22.48 -15.74 
1958 01 -9.13 -21.02 -15.07 
1958 02 12.25 -24.22 -18.23 
1958 03 -1.55 -13.57  -7.56 
1958 04 10.08  -1.97   4.05 
1958 05 18.59   2.08  10.34 
1958 06 19.16   3.46  11.31 
1958 07 23.12   9.37  16.24 
1958 08 23.35   9.18  16.27 
1958 09 15.48   4.42   9.95 
1958 10  9.97  -1.10   4.43 
1958 11 -2.89 -11.92  -7.40 
1958 12 11.31 -22.08 -16.69 
1959 01 18.71 -29.32 -24.02 
1959 02 10.61 -22.96 -16.78 
1959 03   .41 -10.22  -4.90 
1959 04  8.24  -3.80   2.21 
1959 05 14.70    .74   7.72 
1959 06 20.81   7.98  14.39 
1959 07 24.60  11.11  17.85 
1959 08 21.55   9.50  15.52 
1959 09 14.04   4.02   9.03 
1959 10  3.30  -2.95    .17 
1959 11 -5.92 -13.85  -9.88 
1959 12 -4.26 -12.01  -8.13 
1960 01 15.74 -26.68 -21.21 
1960 02 10.41 -23.77 -17.09 
1960 03 -6.56 -19.51 -13.03 
1960 04  6.13  -3.89   1.12 
1960 05 17.70   3.46  10.58 
1960 06 19.93   7.18  13.55 
1960 07 26.17  10.10  18.13 
1960 08 24.82   9.68  17.25 
1960 09 18.79   4.16  11.47 
1960 10 10.16  -1.12   4.52 
1960 11 -3.28 -11.41  -7.34 
1960 12 -9.66 -19.75 -14.70 
1961 01 11.61 -23.39 -17.50 
1961 02 -7.40 -19.50 -13.45 
1961 03  -.60 -12.03  -6.31 
1961 04  6.65  -5.80    .42 
1961 05 17.75   1.38   9.56 
1961 06 25.15   7.75  16.45 
1961 07 24.82  10.66  17.74 
1961 08 27.89   9.04  18.46 
1961 09 14.40   1.41   7.90 
1961 10  9.37   -.10   4.63 
1961 11 -2.01 -10.30  -6.15 
1961 12 15.50 -26.61 -21.05 
1962 01 15.29 -27.06 -21.17 
1962 02 15.09 -28.67 -21.88 
1962 03 -4.79 -15.51 -10.14 
1962 04  6.16  -6.38   -.11 
1962 05 15.55   2.08   8.82 
1962 06 24.07   9.85  16.95 
1962 07 23.51   8.78  16.14 
1962 08 23.67   9.47  16.57 
1962 09 16.66   2.76   9.71 
1962 10 11.43   1.04   6.23 
1962 11  1.22  -7.06  -2.92 
1962 12 -9.34 -18.60 -13.97 
1963 01 17.29 -27.15 -22.22 
1963 02 11.88 -24.44 -18.16 
1963 03 -2.60 -13.71  -8.15 
1963 04  9.06  -3.09   2.98 
1963 05 16.02   1.72   8.87 
1963 06 20.63   9.37  15.00 
1963 07 25.21  12.62  18.91 
1963 08 24.53  10.94  17.73 
1963 09 20.00   6.51  13.25 
1963 10 17.15   2.34   9.75 
1963 11  -.20 -10.69  -5.44 
1963 12 11.66 -21.63 -16.64 
1964 01 11.18 -20.94 -16.06 
1964 02 -6.00 -16.95 -11.47 
1964 03 -9.35 -23.03 -16.19 
1964 04  7.86  -3.23   2.31 
1964 05 18.04   4.50  11.27 
1964 06 22.18   5.80  13.99 
1964 07 25.20  12.35  18.77 
1964 08 20.20   8.14  14.17 
1964 09 14.62   2.98   8.80 
1964 10 11.51   -.64   5.43 
1964 11 -3.75 -11.30  -7.52 
1964 12 15.74 -25.33 -20.53 
1965 01 17.16 -28.40 -22.78 
1965 02 15.06 -25.64 -20.35 
1965 03 -8.47 -23.64 -16.05 
1965 04  6.50  -1.66   2.42 
1965 05 14.38   2.04   8.21 
1965 06 21.76   9.87  15.81 
1965 07 23.64  10.65  17.14 
1965 08 22.49   9.46  15.97 
1965 09 10.80    .93   5.86 
1965 10 12.76   -.65   6.05 
1965 11 -5.19 -13.57  -9.38 
1965 12 -7.33 -16.46 -11.90 
1966 01 23.19 -35.32 -29.25 
1966 02 12.17 -27.97 -20.07 
1966 03 -2.38 -14.83  -8.60 
1966 04  2.89  -4.91  -1.00 
1966 05 14.64    .85   7.74 
1966 06 21.04   7.98  14.51 
1966 07 23.98  11.08  17.52 
1966 08 22.06   8.72  15.39 
1966 09 19.33   4.98  12.16 
1966 10  8.79  -1.07   3.86 
1966 11 -7.45 -17.02 -12.23 
1966 12 11.09 -22.42 -16.75 
1967 01 14.85 -26.05 -20.45 
1967 02 13.25 -29.08 -21.16 
1967 03 -6.26 -17.26 -11.76 
1967 04   .64 -10.24  -4.79 
1967 05 14.49   1.21   7.85 
1967 06 21.59   6.54  14.06 
1967 07 24.55   8.82  16.68 
1967 08 24.22   8.32  16.27 
1967 09 22.26   7.76  15.01 
1967 10  7.11  -1.13   2.99 
1967 11 -2.60  -9.09  -5.84 
1967 12 10.38 -18.54 -14.46 
1968 01 15.21 -25.05 -20.12 
1968 02 -9.68 -23.61 -16.65 
1968 03  -.28 -12.42  -6.35 
1968 04  9.06  -3.92   2.57 
1968 05 15.43   2.07   8.75 
1968 06 20.17   6.69  13.43 
1968 07 22.43   8.59  15.51 
1968 08 18.85   8.05  13.45 
1968 09 18.14   5.18  11.66 
1968 10  9.05   -.66   4.19 
1968 11 -1.10  -9.45  -5.27 
1968 12 13.39 -23.75 -18.57 
1969 01 20.95 -31.38 -26.16 
1969 02 11.13 -22.06 -16.59 
1969 03 -5.96 -18.86 -12.41 
1969 04 11.74  -2.60   4.56 
1969 05 15.30   1.09   8.19 
1969 06 18.52   4.92  11.72 
1969 07 22.58   9.64  16.11 
1969 08 25.23  10.95  18.09 
1969 09 15.49   4.87  10.18 
1969 10  4.37  -3.16    .60 
1969 11  -.67 -10.16  -5.41 
1969 12 -7.06 -15.83 -11.44 
1970 01 16.70 -26.55 -21.62 
1970 02 -8.81 -22.00 -15.40 
1970 03 -6.83 -20.83 -13.83 
1970 04  4.46  -4.15    .15 
1970 05 14.67   1.88   8.27 
1970 06 24.40  10.14  17.27 
1970 07 24.05  11.70  17.87 
1970 08 24.56   8.26  16.41 
1970 09 17.06   3.83  10.44 
1970 10  7.79  -1.52   3.13 
1970 11 -4.66 -10.95  -7.80 
1970 12 16.82 -26.68 -21.75 
1971 01 19.40 -28.89 -24.14 
1971 02 -8.59 -20.36 -14.47 
1971 03 -5.04 -17.00 -11.02 
1971 04  7.13  -4.78   1.17 
1971 05 19.15   2.25  10.70 
1971 06 21.35   8.14  14.75 
1971 07 21.33   9.08  15.20 
