1971 05 31.31  13.91  22.61 
1971 06 29.45  12.11  20.78 
1971 09 37.04  19.69  28.36 
1971 10 36.55  22.55  29.55 
1971 11 35.40  22.43  28.91 
1971 12 34.05  22.19  28.12 
1972 01 99.99  22.65 -99.99 
1972 02 33.14  22.35  27.74 
1972 03 32.07  22.10  27.08 
1972 04 33.06  19.52  26.29 
1972 05 31.35  14.06  22.70 
1972 06 31.22  13.93  22.57 
1972 07 31.14  10.49  20.81 
1972 08 33.75  16.87  25.31 
1972 09 34.84 -99.99 -99.99 
1972 10 37.33  21.05  29.19 
1972 11 36.75  23.03  29.89 
1972 12 35.78  23.36  29.57 
1973 01 32.95  23.56  28.25 
1973 02 33.34  23.25  28.30 
1973 03 32.46  23.33  27.89 
1973 04 33.34  21.15  27.25 
1973 05 33.48  18.36  25.92 
1973 06 32.02  17.91  24.96 
1973 07 31.74  14.17  22.95 
1973 08 34.07  17.11  25.59 
1973 09 35.81  20.56  28.18 
1973 10 36.52  22.17  29.34 
1973 11 33.77  23.45  28.61 
1973 12 33.80  22.93  28.36 
1974 01 30.43  23.22  26.82 
1974 02 32.25  23.47  27.86 
1974 03 31.00  22.84  26.92 
1974 04 33.05  21.07  27.06 
