1972 07  27.64   7.07  17.35 
1972 08  29.98   9.33  19.65 
1972 09  19.67   0.97  10.32 
1972 10  14.86  -2.80   6.03 
1973 03  10.95 -99.99 -99.99 
1973 05  21.70   2.63  12.16 
1973 06  25.08   6.55  15.81 
1973 07  31.05   9.47  20.26 
1973 08  30.08   8.03  19.05 
1973 09  24.06   6.18  15.12 
1973 10  12.09 -99.99 -99.99 
1974 02   6.64 -99.99 -99.99 
1974 05  17.67 -99.99 -99.99 
1974 06  28.42   6.29  17.35 
1974 07  28.05   9.18  18.61 
1974 08  29.70   8.47  19.09 
1974 09  26.59   3.21  14.90 
1974 10  16.59 -99.99 -99.99 
1975 02   -.16 -99.99 -99.99 
1975 04  14.22 -99.99 -99.99 
1975 05  21.13 -99.99 -99.99 
1975 06  23.42   6.71  15.06 
1975 07  31.20  11.02  21.11 
1975 08  25.98   8.01  16.99 
1975 09  25.80 -99.99 -99.99 
1975 10  13.12 -99.99 -99.99 
1976 02   2.75 -99.99 -99.99 
1976 03   5.00 -99.99 -99.99 
1976 06  22.10 -99.99 -99.99 
1976 07  27.97 -99.99 -99.99 
1976 08  24.01   9.72  16.86 
1976 09  24.60 -99.99 -99.99 
1977 02   3.98 -99.99 -99.99 
1977 05  17.96 -99.99 -99.99 
1977 06  27.27 -99.99 -99.99 
1977 08  31.16 -99.99 -99.99 
1977 09  20.57   4.65  12.61 
1977 10  15.13 -99.99 -99.99 
1978 05  18.84   3.65  11.24 
1978 06  26.47   6.75  16.61 
1978 07  30.16   9.68  19.92 
1978 08  26.23   9.92  18.07 
1978 09  19.33   6.86  13.09 
1979 05  22.03   3.88  12.95 
1979 06  27.48   6.43  16.95 
1979 07  31.42  10.60  21.01 
1979 08  30.06  10.52  20.29 
1979 09  26.03   5.84  15.93 
1979 10  18.17   0.74   9.45 
1980 02   2.65 -99.99 -99.99 
1980 05  20.48   6.66  13.57 
1980 06  21.82   7.58  14.70 
1980 07  28.11   8.62  18.36 
1980 08  25.81   6.92  16.36 
1980 09  22.55   3.58  13.06 
