1966 01 13.67 -23.41 -18.54 
1966 02 17.06 -24.90 -20.98 
1966 03 -5.96 -16.00 -10.98 
1966 04   .73  -6.30  -2.78 
1966 05  8.43    .30   4.37 
1966 06 17.35   8.64  13.00 
1966 07 19.29  11.14  15.21 
1966 08 15.82   8.95  12.38 
1966 09  9.37   2.66   6.01 
1966 10  3.38  -1.60    .89 
1966 11  1.86  -3.13   -.63 
1966 12 -5.33  -9.88  -7.60 
1967 01 12.57 -23.94 -18.25 
1967 02 -5.15 -11.69  -8.42 
1967 03   .34  -6.00  -2.83 
1967 04  3.26  -3.31    .-2 
1967 05  9.04    .50   4.77 
1967 06 14.38   6.77  10.57 
1967 07 17.54  10.21  13.87 
1967 08 19.37  12.59  15.98 
1967 09 13.49   6.24   9.86 
1967 10  5.99    .61   3.30 
1967 11  3.33   -.75   1.29 
1967 12 12.26 -20.29 -16.27 
1968 01 14.60 -22.50 -18.54 
1968 02 -9.75 -19.79 -14.77 
1968 03 -2.29 -11.31  -6.80 
1968 04  2.38  -5.36  -1.49 
1968 05  6.35   -.88   2.73 
1968 06 15.93   8.04  11.98 
1968 07 17.21   7.74  12.48 
1968 08 16.19   7.31  11.75 
1968 09 10.20   2.49   6.34 
1968 10   .11  -6.73  -3.31 
1968 11 -2.29  -7.51  -4.90 
1968 12 -1.66  -8.34  -5.00 
1969 01 -9.70 -17.06 -13.37 
1969 02 11.02 -18.54 -14.78 
1969 03 -6.14 -17.08 -11.61 
1969 04  2.83  -6.61  -1.89 
1969 05  7.76   -.46   3.65 
1969 06 15.75   6.37  11.06 
1969 07 18.56   9.41  13.98 
1969 08 19.01   9.24  14.12 
1969 09 10.94   3.15   7.04 
1969 10  5.83    . 8   2.95 
1969 11  -.92  -6.17  -3.54 
1969 12 -5.04 -12.52  -8.78 
1970 01 -7.89 -16.04 -11.96 
1970 02 12.91 -20.70 -16.80 
1970 03 -1.50  -7.25  -4.37 
1970 04  1.75  -5.43  -1.83 
1970 05  9.04    .29   4.66 
1970 06 17.16   7.04  12.10 
1970 07 20.19  12.37  16.28 
1970 08 18.43   9.47  13.95 
1970 09 11.22   4.82   8.02 
1970 10  4.48   -.14   2.17 
1970 11 -3.48 -10.81  -7.14 
1970 12 -3.39 -10.37  -6.88 
1971 01 -4.67 -13.15  -8.91 
1971 02 -8.37 -15.60 -11.98 
1971 03 -6.23 -16.43 -11.33 
1971 04  1.19  -6.94  -2.87 
1971 05  7.89   -.32   3.78 
1971 06 16.18   5.83  11.00 
1971 07 17.99   9.45  13.71 
1971 08 16.61  10.56  13.58 
1971 09 10.57   2.85   6.71 
1971 10  3.67  -2.46    .60 
1971 11 -4.58 -12.35  -8.46 
1971 12 -3.68 -12.45  -8.06 
1972 01 -6.36 -12.45  -9.40 
1972 02 -7.01 -14.61 -10.81 
1972 03 -1.97 -10.44  -6.20 
1972 04  3.29  -2.74    .27 
1972 05  9.05   1.04   5.05 
1972 06 18.50   8.88  13.69 
1972 07 22.18  13.92  18.04 
1972 08 18.36  10.46  14.41 
1972 09 11.63   3.96   7.79 
1972 10  4.56  -1.16   1.69 
1972 11 -2.19  -8.88  -5.53 
1972 12   .93  -3.61  -1.33 
1973 01 -1.99  -9.85  -5.92 
1973 02 -4.81 -12.51  -8.66 
1973 03 -1.16 -10.33  -5.74 
1973 04  2.86  -2.52    .16 
1973 05  9.66   1.30   5.48 
1973 06 16.90   8.63  12.76 
1973 07 23.59  12.92  18.25 
1973 08 15.90   7.93  11.91 
1973 09  8.91   1.48   5.19 
1973 10  1.52  -5.34  -1.91 
1973 11 -3.33 -10.27  -6.80 
1973 12 -8.18 -19.43 -13.81 
1974 01 -3.48 -11.27  -7.37 
1974 02 -2.20  -9.09  -5.64 
1974 03 -1.31  -9.10  -5.21 
1974 04  3.24  -6.08  -1.42 
1974 05  8.46   -.39   4.03 
1974 06 17.32   7.15  12.23 
1974 07 18.78  12.00  15.39 
1974 08 16.79   9.93  13.36 
1974 09 13.31   8.14  10.73 
1974 10  4.58    .19   2.38 
1974 11 -1.10  -6.64  -3.87 
1974 12  -.64  -4.69  -2.66 
1975 01 -4.04 -12.09  -8.06 
1975 02 -3.04 -11.01  -7.02 
1975 03   .29  -6.96  -3.33 
1975 04  3.01  -4.98   -.98 
1975 05 11.40   1.15   6.27 
1975 06 13.39   5.39   9.39 
1975 07 17.37   9.43  13.40 
1975 08 15.47   7.46  11.46 
1975 09 12.98   6.31   9.64 
1975 10  5.59   -.98   2.30 
1975 11   .25  -6.64  -3.19 
1975 12 -3.35 -14.57  -8.96 
1976 01 10.87 -21.51 -16.19 
1976 02 -6.45 -13.40  -9.92 
1976 03 -4.30 -13.44  -8.87 
1976 04  2.66  -4.81  -1.07 
1976 05 11.17   1.63   6.40 
1976 06 15.07   5.43  10.25 
1976 07 17.18   9.09  13.13 
1976 08 17.58   6.21  11.89 
1976 09  9.28   1.26   5.27 
1976 10  1.45  -3.95  -1.25 
1976 11 -1.52  -7.59  -4.55 
1976 12 -5.26 -11.45  -8.35 
1977 01 -6.87 -13.24 -10.05 
1977 02 -8.70 -17.04 -12.87 
1977 03 -2.26 -11.09  -6.67 
1977 04  1.94  -4.63  -1.34 
1977 05  7.62   -.57   3.52 
1977 06 14.90   5.83  10.36 
1977 07 17.74   9.96  13.85 
1977 08 15.92   6.71  11.31 
1977 09  9.60   3.63   6.62 
1977 10  3.08  -1.51    .78 
1977 11  -.88  -5.75  -3.31 
1977 12 -4.85 -12.32  -8.58 
1978 01 -6.69 -16.28 -11.48 
1978 02 12.15 -20.72 -16.43 
1978 03 -1.94  -8.60  -5.27 
1978 04  1.96  -6.68  -2.35 
