1966 11 31.64  21.71  26.67 
1966 12 35.20  24.38  29.79 
1967 01 31.39  25.12  28.25 
1967 02 33.24  25.16  29.20 
1967 03 34.54  24.96  29.75 
1967 04 34.53  24.80  29.66 
1967 05 30.87  21.75  26.31 
1967 06 26.27  16.62  21.44 
1967 07 25.46  14.87  20.16 
1967 08 25.84  16.11  20.97 
1967 09 30.43  17.83  24.13 
1967 10 33.34  20.18  26.76 
1967 11 34.05  24.00  29.02 
1967 12 32.34  23.46  27.90 
1968 01 35.43  26.37  30.90 
1968 02 34.62  26.18  30.40 
1968 03 33.12  24.86  28.99 
1968 04 32.09  23.02  27.55 
1968 05 27.59  18.74  23.16 
1968 06 25.47  17.54  21.50 
1968 07 23.99  14.18  19.08 
1968 08 25.06  15.04  20.04 
1968 09 28.97  17.74  23.35 
1968 10 32.11  21.11  26.61 
1968 11 33.75  24.05  28.90 
1968 12 35.89  25.31  30.59 
1969 01 36.15  26.49  31.32 
1969 02 34.05  26.02  30.03 
1969 03 36.18  26.00  31.09 
1969 04 34.64  23.32  28.98 
1969 05 30.71  21.97  26.34 
1969 06 26.43  16.25  21.34 
1969 07 26.85  15.75  21.30 
1969 08 28.17  16.70  22.43 
1969 09 29.59  17.64  23.61 
1969 10 34.24  22.14  28.19 
1969 12 35.25  23.02  29.14 
1970 01 38.50  25.54  32.02 
