1970 09 18.36   5.95  12.15 
1970 10 23.05   9.05  16.04 
1970 11 21.97  10.10  16.03 
1971 02 24.97  16.19  20.58 
1971 03 25.04  14.07  19.55 
1971 04 22.86  10.58  16.72 
1971 05 18.75 -99.99 -99.99 
1971 06 99.99   4.44 -99.99 
1971 07 14.41   1.39   7.90 
1971 09 20.48   5.26  12.87 
1971 10 99.99   8.00 -99.99 
1971 11 23.13   9.62  16.37 
1971 12 25.09  13.22  19.15 
1972 02 24.89  13.87  19.37 
1972 03 23.27  12.91  18.09 
1972 04 22.36   9.10  15.73 
1972 05 18.78   7.61  13.19 
1972 06 15.82   5.75  10.78 
1972 07 16.26   3.87  10.06 
1972 08 17.99   5.16  11.57 
1972 09 21.76   5.36  13.56 
1972 10 20.57   9.72  15.15 
1972 11 22.71  11.21  16.95 
1972 12 28.85  13.22  21.03 
1973 01 27.79  16.52  22.15 
1973 02 26.08  17.31  21.69 
1973 03 25.71  13.69  19.69 
1973 04 23.93  11.17  17.54 
1973 05 20.63   6.16  13.39 
1973 06 16.52   5.26  10.89 
1973 07 16.79   5.87  11.33 
1973 08 17.23 -99.99 -99.99 
1973 09 21.33   7.33  14.33 
1973 10 21.68  10.72  16.20 
1973 11 23.19  11.75  17.47 
1973 12 25.21 -99.99 -99.99 
1974 03 24.30  12.82  18.56 
1974 04 21.56  13.21  17.38 
1974 05 19.17   8.93  14.05 
1974 06 15.76   5.33  10.54 
1974 07 15.57   5.00  10.28 
1974 08 16.70   4.73  10.71 
1974 09 18.82   5.99  12.40 
1975 02 25.95  14.90  20.42 
1975 04 22.86  10.17  16.51 
1975 05 19.96   7.29  13.62 
1975 06 16.20 -99.99 -99.99 
1975 07 17.40 -99.99 -99.99 
1975 08 17.67 -99.99 -99.99 
1975 09 19.56 -99.99 -99.99 
