1969 09 26.31   6.79  16.54 
1969 10 33.21  14.28  23.74 
1969 11 35.66  15.50  25.58 
1969 12 35.61  19.48  27.54 
1970 01 38.49  20.03  29.26 
1970 02 37.70  20.43  29.06 
1970 03 33.34  14.69  24.01 
1970 04 28.97  11.34  20.15 
1970 05 22.65   8.82  15.73 
1970 06 24.70   3.86  14.28 
1970 07 21.22   -.80  10.21 
1970 08 22.70   3.62  13.16 
1970 09 25.01   8.64  16.83 
1970 10 32.27  14.45  23.36 
1970 11 33.20  16.87  25.04 
1970 12 35.84  18.65  27.25 
1971 01 39.93  22.75  31.34 
1971 02 37.75  19.24  28.50 
1971 03 34.99  19.89  27.44 
1971 04 28.60  11.43  20.01 
1971 06 18.69   2.16  10.42 
1971 07 20.98    .52  10.75 
1971 08 23.71   7.48  15.59 
1971 09 28.60   9.81  19.20 
1971 10 34.16  15.75  24.96 
1971 11 33.79  18.79  26.29 
1971 12 36.00  20.12  28.06 
1972 01 36.06  18.82  27.44 
1972 02 35.07  19.12  27.09 
1972 03 31.42  14.70  23.06 
1972 04 27.87   8.35  18.11 
1972 05 23.23   3.85  13.54 
1972 06 22.08   1.89  11.98 
1972 07 21.18   1.04  11.11 
1972 08 23.83   6.06  14.94 
1972 09 28.68   7.29  17.98 
1972 10 33.39  13.84  23.61 
1972 11 35.48  17.06  26.27 
1972 12 99.99  18.81 -99.99 
1973 01 38.08  23.08  30.58 
1973 03 35.11  17.85  26.48 
1973 04 31.59  14.42  23.00 
1973 05 25.34   9.71  17.52 
1973 06 20.01   8.49  14.25 
1973 07 21.28   8.10  14.69 
1973 08 22.37   9.16  15.76 
1973 09 27.15   7.88  17.51 
1973 10 31.45  13.02  22.23 
1973 11 33.53  17.51  25.52 
1973 12 36.34  20.80  28.57 
1974 01 32.96  22.60  27.78 
1974 02 30.34  19.45  24.89 
1974 03 32.29  16.56  24.42 
1974 04 25.91  13.74  19.82 
1974 05 22.70   8.34  15.52 
1974 06 20.20   2.02  11.11 
1974 07 23.21   4.71  13.96 
1974 08 21.80   7.68  14.74 
1974 09 23.64  10.36  17.00 
1974 10 28.86  13.28  21.07 
1974 11 31.82  14.49  23.15 
1974 12 35.74  17.18  26.46 
1975 12 99.99  18.76 -99.99 
1976 01 99.99  17.53 -99.99 
1976 02 33.43  19.04  26.24 
1976 03 31.80  15.72  23.76 
1976 06 20.19   -.58   9.80 
1976 07 20.97   -.93  10.01 
1976 08 23.35    .95  12.15 
1976 09 27.87   6.75  17.31 
1976 10 29.46  13.65  21.55 
1976 11 33.34  16.23  24.79 
1976 12 38.71 -99.99 -99.99 
1977 01 38.09  20.09  29.09 
1977 02 35.54  21.02  28.28 
1977 03 32.43  15.54  23.99 
1977 04 99.99   9.50 -99.99 
1977 06 20.09   1.99  11.04 
1977 07 19.89  -1.98   8.95 
1977 08 27.10   4.19  15.64 
1977 09 25.27   7.76  16.51 
1977 10 32.36  14.60  23.48 
1977 11 34.08  18.70  26.39 
1977 12 36.08  19.37  27.72 
1978 01 36.23  20.86  28.54 
1978 03 34.58  16.25  25.41 
1978 04 29.30   7.33  18.31 
1978 05 22.89  10.34  16.61 
1978 06 19.65   6.09  12.87 
1978 07 18.39   3.43  10.91 
1978 08 19.37   5.57  12.47 
1978 09 24.85   7.28  16.06 
1978 10 30.10  11.85  20.97 
1978 11 33.07  15.59  24.33 
1978 12 36.23  18.18  27.20 
1979 01 39.06  21.45  30.25 
1979 02 36.57  21.50  29.03 
1979 03 35.14  18.27  26.70 
1979 04 28.18  14.39  21.28 
1979 05 19.43   9.02  14.22 
1979 06 21.42   6.37  13.89 
1979 08 23.20   6.13  14.66 
1979 09 27.37   9.41  18.39 
1979 10 31.63  11.02  21.32 
1979 12 37.82  20.48  29.15 
1980 01 39.33  20.66  29.99 
1980 02 38.11  20.83  29.47 
1980 03 36.91  16.42  26.66 
1980 04 30.35  13.82  22.08 
