1967 09 18.23   1.36   9.79 
1967 10 22.14   8.89  15.51 
1967 11 24.85   7.96  16.40 
1967 12 24.74  10.69  17.71 
1968 01 25.36 -99.99 -99.99 
1968 02 25.15  13.12  19.13 
1968 03 24.04  12.25  18.14 
1968 04 23.82   7.48  15.65 
1968 05 14.40   4.46   9.43 
1968 06 13.57  -1.32   6.12 
1968 07 12.46    .-4   6.21 
1968 08 12.91    .91   6.91 
1968 09 16.64   3.39  10.01 
1968 10 21.35   6.23  13.79 
1968 11 26.07   9.37  17.71 
1968 12 24.82  11.22  18.02 
1969 01 26.90  14.42  20.66 
1969 02 25.69  14.03  19.86 
1969 03 24.91  12.40  18.65 
1969 04 22.44   6.81  14.62 
1969 05 16.39   5.82  11.10 
1969 06 13.95   1.68   7.81 
1969 07 14.17   1.81   7.99 
1969 08 16.33   3.32   9.82 
1969 09 14.32   1.98   8.14 
1969 10 19.90   8.74  14.32 
1969 11 21.61   8.77  15.19 
1969 12 25.73  11.58  18.65 
1970 01 26.18  13.40  19.79 
1970 03 99.99  10.24 -99.99 
1970 04 99.99   7.58 -99.99 
1970 06 14.48   -.94   6.77 
1970 07 14.37  -4.96   4.69 
1970 08 14.57  -1.19   6.68 
1970 09 15.80   3.13   9.46 
1970 10 21.05   7.02  14.03 
1970 11 21.42  10.12  15.77 
1970 12 23.79  13.55  18.67 
1971 01 24.93  13.39  19.16 
1971 02 24.03  15.25  19.64 
1971 03 22.48  10.59  16.53 
1971 04 20.43   4.55  12.49 
1971 05 16.73   1.15   8.93 
1971 06 14.28  -1.65   6.31 
1971 07 12.76  -1.87   5.44 
1971 08 14.30   1.07   7.68 
1971 09 17.08   3.63  10.35 
1971 10 21.45   6.71  14.08 
1971 11 21.73   6.68  14.20 
1971 12 24.87  11.15  18.01 
1972 01 23.68  12.36  18.02 
1972 02 22.17  12.56  17.36 
1972 03 23.86   9.66  16.76 
1972 04 20.35   4.86  12.60 
1972 05 16.25   5.00  10.62 
1972 06 14.76    .-2   7.37 
1972 07 13.57  -4.75   4.41 
1972 08 15.30    .23   7.76 
1972 09 19.16   2.99  11.07 
1972 10 99.99   7.52 -99.99 
1972 11 99.99  10.52 -99.99 
1972 12 27.02  12.16  19.59 
1973 01 26.37  15.54  20.95 
1973 02 25.42  15.14  20.28 
1973 03 25.30  11.39  18.34 
1973 04 22.61   6.81  14.71 
1973 05 19.62   2.33  10.98 
1973 06 14.48   1.71   8.09 
1973 07 14.41   4.04   9.22 
1973 08 15.64   2.05   8.84 
1973 09 18.71   4.88  11.79 
1973 10 99.99   8.00 -99.99 
1973 11 99.99   9.56 -99.99 
1973 12 24.31  12.55  18.43 
1974 01 23.10  14.85  18.97 
1974 02 25.26  12.80  19.03 
1974 03 22.98  12.18  17.58 
1974 04 21.05   9.62  15.33 
1974 05 16.90 -99.99 -99.99 
1974 06 14.48   -.38   7.05 
1974 07 13.33  -1.25   6.04 
1974 08 13.61   -.70   6.45 
1974 09 15.52    .87   8.19 
1974 10 18.54   5.75  12.15 
1974 11 20.77   7.44  14.10 
1974 12 26.50   9.45  17.97 
1975 01 27.27  11.68  19.47 
1975 02 24.95  12.80  18.87 
1975 03 23.01  11.79  17.40 
1975 04 20.00   6.73  13.36 
1975 05 17.81    .73   9.26 
1975 06 13.24    .79   7.01 
1975 07 14.62   -.58   7.01 
1975 08 14.05   1.44   7.74 
1975 09 17.12   5.65  11.38 
1975 10 18.54   6.99  12.76 
1975 11 22.70  10.34  16.52 
1975 12 24.41  13.01  18.70 
