1970 01 26.54  13.72  20.13 
1970 02 28.75  15.44  22.09 
1970 03 26.14  13.88  20.01 
1970 04 20.83  11.13  15.98 
1970 05 18.94  10.10  14.52 
1970 06 16.27  10.13  13.20 
1970 07 16.71   9.53  13.12 
1970 08 16.57   7.47  12.02 
1970 09 17.26   8.47  12.86 
1970 10 18.90   8.06  13.48 
1970 11 21.08   9.63  15.35 
1970 12 25.43  12.89  19.16 
1971 01 25.75  14.07  19.91 
1971 02 26.57  14.51  20.54 
1971 03 26.00  12.63  19.31 
1971 05 19.07   9.55  14.31 
1971 06 17.90   8.47  13.18 
1971 07 16.67   8.54  12.60 
1971 08 15.69   7.53  11.61 
1971 09 16.20   8.09  12.14 
1971 10 17.57   8.91  13.24 
1971 11 18.67   9.35  14.01 
1971 12 23.60  11.17  17.38 
1972 02 30.24  15.35  22.79 
1972 03 99.99  13.12 -99.99 
1972 04 22.14  10.51  16.32 
1972 05 20.67  10.92  15.79 
1972 06 17.29   7.79  12.54 
1972 07 15.96   8.46  12.21 
1972 08 15.88   8.89  12.38 
1972 09 17.58   9.29  13.43 
1972 10 20.45   8.68  14.57 
1972 11 23.85  12.10  17.97 
1972 12 27.97 -99.99 -99.99 
1973 01 28.34 -99.99 -99.99 
1973 02 26.22 -99.99 -99.99 
1973 03 25.51  11.10  18.30 
1973 04 20.97  11.50  16.23 
1973 05 18.34  11.36  14.85 
1973 06 15.40   7.85  11.62 
1973 07 16.37   9.39  12.88 
1973 08 15.90   8.60  12.25 
1973 09 16.83   8.60  12.71 
1973 10 19.16   9.17  14.16 
1973 11 22.36  11.41  16.88 
1974 01 28.44  14.16  21.30 
1974 02 26.50  14.27  20.38 
1974 03 26.21  13.78  19.99 
1974 04 21.23  11.39  16.31 
1974 05 18.87  10.50  14.69 
1974 06 17.66   8.72  13.19 
1974 07 15.86   9.16  12.51 
1974 08 16.92   8.41  12.66 
1974 09 19.62   7.85  13.74 
1974 10 18.62   8.96  13.79 
1974 11 21.16  10.10  15.63 
1974 12 25.50  12.43  18.96 
1975 01 99.99  13.20 -99.99 
1975 02 30.59  16.29  23.44 
1975 07 16.46   9.66  13.06 
1975 08 16.89   7.05  11.96 
1975 09 17.70   6.71  12.20 
1975 10 20.42   9.35  14.89 
1975 11 21.49  10.50  15.99 
