1961 01 -4.23 -11.59  -7.91 
1961 02  1.65  -5.78  -2.06 
1961 03  7.50  -2.57   2.46 
1961 04 10.73  -2.31   4.21 
1961 05 14.51   4.08   9.29 
1961 06 20.53   8.52  14.52 
1961 07 19.54  10.08  14.81 
1961 08 17.33   8.13  12.73 
1961 09 15.36   5.97  10.66 
1961 10 11.90   6.03   8.96 
1961 11  4.07  -2.33    .86 
1961 12 -4.13 -12.31  -8.22 
1962 01 -1.87  -9.17  -5.52 
1962 02   .75  -7.69  -3.47 
1962 03   .55 -13.77  -6.61 
1962 04  7.84  -1.17   3.33 
1962 05 11.53   2.50   7.01 
1962 06 17.56   6.32  11.94 
1962 07 18.29   8.55  13.42 
1962 08 16.04   7.87  11.95 
1962 10 10.38   2.25   6.31 
1962 11  1.28  -4.25  -1.48 
1962 12 -5.37 -14.16  -9.76 
1963 01 -9.47 -18.64 -14.06 
1963 02 -6.79 -16.52 -11.65 
1963 03   .86 -10.75  -4.94 
1963 04  8.00  -1.11   3.44 
1963 05 16.20   4.85  10.53 
1963 06 19.46   8.21  13.84 
1963 07 20.83   9.20  15.01 
1963 08 18.29  11.29  14.79 
1963 09 14.96   5.79  10.37 
1963 10  9.46   2.94   6.20 
1963 11  1.85  -2.68   -.41 
1963 12 -3.21  -9.91  -6.56 
1964 01 -1.05  -7.20  -4.13 
1964 02 -1.48  -9.06  -5.27 
1964 03  3.87  -8.06  -2.09 
1964 04 10.74  -1.23   4.75 
1964 05 16.79   3.69  10.24 
1964 06 18.00   7.34  12.67 
1964 07 18.49   8.93  13.71 
1964 08 17.86   7.87  12.86 
1964 09 14.16   5.21   9.68 
1964 10  8.39   1.04   4.71 
1964 11  2.78  -2.23    .27 
1964 12 -2.73  -8.24  -5.48 
1965 01 -1.26  -7.62  -4.44 
1965 02  -.11 -11.32  -5.71 
1965 03  3.37  -8.47  -2.55 
1965 04  8.12   -.49   3.81 
1965 05 14.00    .67   7.33 
1965 06 18.20   7.96  13.08 
1965 07 18.09   7.70  12.89 
1965 08 17.53   7.51  12.52 
1965 09 14.47   7.99  11.23 
1965 10  9.64   1.68   5.66 
1965 12 -7.27 -15.49 -11.38 
1966 01 -8.09 -15.51 -11.80 
1966 02 -9.22 -18.41 -13.81 
1966 03  2.59  -6.00  -1.70 
1966 04  4.86  -4.88    . 0 
1966 05 14.78   3.29   9.03 
1966 06 21.38   8.76  15.07 
1966 07 20.79  10.04  15.41 
1966 08 18.16   7.92  13.04 
1966 09 14.27   4.64   9.45 
1966 10  7.55   1.15   4.35 
1966 11  2.68  -1.50    .59 
1966 12 -1.46  -7.05  -4.25 
1967 01 -7.12 -15.42 -11.27 
1967 02 -1.12  -7.55  -4.33 
1967 03  5.12  -1.45   1.83 
1967 04  8.25  -1.42   3.41 
1967 05 13.18   3.68   8.43 
1967 06 18.83   6.47  12.65 
1967 07 20.76   9.71  15.23 
1967 08 19.33   9.60  14.46 
1967 09 15.63   6.37  11.00 
1967 10  9.39   3.50   6.44 
1967 11  4.98    .19   2.58 
1967 12 -4.46 -11.00  -7.73 
1968 01 -7.72 -16.59 -12.15 
1968 02 -3.55 -14.34  -8.94 
1968 03  3.45  -5.83  -1.18 
1968 04 11.35  -1.83   4.76 
1968 05 12.69   2.93   7.81 
1968 06 21.38   8.82  15.10 
1968 07 20.31   8.47  14.39 
1968 08 20.67   7.51  14.09 
1968 09 14.84   6.26  10.55 
1968 10  7.46    . 4   3.75 
1968 11 -2.27  -8.41  -5.34 
1968 12 -3.65  -9.04  -6.34 
1969 01 -3.21  -8.33  -5.77 
1969 02 -6.10 -15.14 -10.62 
1969 03  1.70 -14.17  -6.23 
1969 04  7.68  -1.70   2.98 
1969 05 14.68   3.08   8.88 
1969 06 22.30   8.83  15.56 
1969 07 21.04  11.02  16.03 
1969 08 22.60   9.22  15.91 
1969 09 15.26   5.53  10.39 
1969 10  9.99   3.01   6.50 
1969 11  -.14  -6.85  -3.49 
1969 12 -4.80 -11.75  -8.27 
1970 01 -7.14 -13.68 -10.41 
1970 02 -9.58 -20.56 -15.07 
1970 03  1.33  -6.48  -2.57 
1970 04  5.04  -2.36   1.33 
1970 05 15.94   2.97   9.45 
1970 06 23.89   9.30  16.59 
1970 07 18.45  10.21  14.33 
1970 08 20.18   9.35  14.76 
1970 09 13.41   5.28   9.34 
1970 10  8.43   2.34   5.39 
1970 11   . 0  -6.28  -3.14 
1970 12  -.40  -6.99  -3.69 
1971 01  -.87  -7.05  -3.96 
1971 02   .44  -5.51  -2.53 
1971 03   .49  -7.64  -3.57 
1971 04  7.62  -2.06   2.78 
1971 05 16.42   4.38  10.40 
1971 06 18.83   7.20  13.01 
1971 07 20.61   9.77  15.19 
1971 08 18.94   8.60  13.77 
1971 09 14.15   4.73   9.43 
1971 10 10.04   1.34   5.69 
1971 11   .91  -6.90  -2.99 
1971 12  1.68  -5.81  -2.06 
1972 01 -5.50 -11.15  -8.32 
1972 02 -1.15  -6.11  -3.63 
1972 03  3.54  -5.17   -.81 
1972 04  6.65  -1.24   2.70 
1972 05 15.06   4.11   9.58 
1972 06 19.41   9.33  14.37 
1972 07 23.11  11.68  17.39 
1972 08 18.69   9.02  13.85 
1972 09 13.47   4.21   8.84 
1972 10  9.27   1.90   5.58 
1972 11  3.10  -2.76    .16 
1972 12  3.24   -.75   1.24 
1973 01   .14  -4.04  -1.95 
1973 02   .75  -5.84  -2.54 
1973 03  6.82  -2.99   1.91 
1973 04  7.19  -1.76   2.71 
1973 05 14.57   4.34   9.45 
1973 06 21.24   8.64  14.94 
1973 07 22.44  11.83  17.13 
1973 08 19.37   8.14  13.76 
1973 09 12.66   3.96   8.30 
1973 10  6.45  -3.51   1.46 
1973 11  -.67  -8.60  -4.64 
1973 12 -1.96 -11.25  -6.60 
1974 01   .82  -4.01  -1.59 
1974 02  1.64  -2.54   -.45 
1974 03  5.18  -5.02    . 7 
1974 04 12.41  -2.10   5.15 
1974 05 16.45   1.73   9.09 
1974 06 19.58   6.97  13.27 
1974 07 18.21   9.52  13.87 
1974 08 19.03   8.74  13.88 
1974 09 14.37   7.60  10.98 
1974 10  5.88   1.68   3.78 
1974 11  2.56  -1.32    .61 
1974 12  1.76  -4.61  -1.42 
1975 01  1.90  -4.15  -1.12 
1975 02 -1.62 -10.31  -5.96 
1975 03  4.05  -4.78   -.36 
1975 04  8.60  -2.66   2.97 
1975 05 16.95   4.16  10.56 
1975 06 20.17   6.28  13.22 
1975 07 23.41  10.34  16.87 
1975 08 23.28  10.79  17.03 
1975 09 15.63   7.54  11.58 
1975 10  9.51   2.52   6.01 
1975 11  3.06   -.54   1.26 
1975 12  2.26  -6.09  -1.91 
1976 01 -5.24 -14.59  -9.91 
1976 02 -1.40  -7.03  -4.21 
1976 03  1.81  -9.10  -3.65 
1976 04  8.80  -1.77   3.51 
1976 05 16.57   3.29   9.93 
1976 06 20.76   7.94  14.35 
1976 07 22.78   9.59  16.18 
1976 08 22.63   7.97  15.29 
1976 09 13.46   1.91   7.68 
1976 10  6.19   1.97   4.08 
1976 11  2.36  -2.65   -.14 
1976 12 -4.71 -10.85  -7.78 
1977 01 -4.08  -9.09  -6.58 
1977 02 -4.37 -12.98  -8.67 
1977 04  4.98  -3.85    .56 
1977 05 16.06   3.35   9.70 
1977 06 19.95   8.64  14.30 
