1968 01 32.80  13.10  22.95 
1968 02 34.90  16.50  25.70 
1968 03 38.00  16.50  27.25 
1968 04 38.00  17.70  27.85 
1968 05 38.59  19.40  29.00 
1968 06 36.30  21.30  28.80 
1968 07 33.30  23.40  28.34 
1968 08 33.90  23.70  28.80 
1968 09 33.00  22.70  27.85 
1968 10 35.59  22.70  29.15 
1968 11 37.00  19.90  28.45 
1968 12 34.80  17.50  26.15 
1969 01 36.00  16.90  26.45 
1969 02 39.00  17.70  28.35 
1969 03 40.20  19.10  29.65 
1969 04 40.70  21.60  31.15 
1969 05 40.80  21.90  31.34 
1969 06 37.70  23.50  30.60 
1969 07 33.59  24.30  28.95 
1969 08 32.40  23.40  27.90 
1969 09 32.90  23.20  28.05 
1969 10 34.00  22.80  28.40 
1969 11 36.80  18.70  27.75 
1969 12 34.70  16.60  25.65 
1970 01 36.00  14.60  25.30 
1970 02 37.59  17.50  27.55 
1970 03 39.00  18.60  28.80 
1970 04 40.80  20.40  30.59 
1970 05 38.59  21.30  29.95 
1970 06 37.40  24.00  30.70 
1970 07 35.00  24.00  29.50 
1970 08 32.50  23.50  28.00 
1970 09 33.80  23.50  28.65 
1970 10 37.50  23.40  30.45 
1970 11 36.50  20.29  28.40 
1970 12 34.59  18.10  26.34 
1971 01 35.90  15.00  25.45 
1971 02 37.40  16.10  26.75 
1971 03 37.40  17.79  27.60 
1971 04 39.50  20.20  29.85 
1971 05 40.09  20.50  30.30 
1971 06 37.30  22.70  30.00 
1971 07 33.90  23.30  28.60 
1971 08 31.40  22.70  27.05 
1971 09 33.09  22.50  27.80 
1971 10 36.00  22.60  29.30 
1971 11 35.90  19.29  27.60 
1971 12 35.50  15.70  25.60 
1972 01 34.20  15.10  24.65 
1972 02 36.30  16.20  26.25 
1972 03 37.80  18.60  28.20 
1972 04 38.59  18.40  28.50 
1972 05 39.70  20.40  30.05 
1972 06 36.50  22.90  29.70 
1972 07 35.70  24.10  29.90 
1972 08 33.59  23.90  28.75 
1972 09 34.09  23.30  28.70 
1972 10 35.80  24.20  30.00 
1972 11 36.90  19.40  28.15 
1972 12 33.80  17.50  25.65 
1973 01 35.40  16.20  25.80 
1973 02 36.50  18.20  27.35 
1973 03 39.00  18.79  28.90 
1973 04 40.80  20.20  30.50 
1973 05 37.70  22.40  30.05 
1973 06 37.90  25.20  31.55 
1973 07 33.80  24.00  28.90 
1973 08 32.59  23.80  28.20 
1973 09 34.70  23.30  29.00 
1973 10 37.59  23.20  30.40 
1973 11 37.70  20.00  28.85 
1973 12 33.90  16.00  24.95 
1974 01 33.70  15.80  24.75 
1974 02 35.90  16.70  26.30 
1974 03 36.20  18.50  27.35 
1974 04 38.70  18.10  28.40 
1974 05 39.30  20.60  29.95 
1974 06 37.50  22.50  30.00 
1974 07 33.80  23.90  28.84 
1974 08 33.30  23.30  28.30 
1974 09 33.30  22.70  28.00 
1974 10 36.30  21.50  28.90 
1974 11 36.90  18.10  27.50 
1974 12 34.00  17.00  25.50 
1975 01 34.00  16.70  25.35 
1975 02 37.40  16.10  26.75 
1975 03 38.40  17.20  27.80 
1975 04 39.09  20.00  29.55 
1975 05 39.80  20.20  30.00 
1975 06 37.59  23.10  30.34 
1975 07 32.80  23.40  28.09 
1975 08 33.50  24.10  28.80 
1975 09 31.80  22.60  27.20 
1975 10 35.50  23.40  29.45 
1975 11 36.00  17.79  26.90 
1975 12 35.50  16.50  26.00 
1976 01 32.00  15.40  23.70 
1976 02 35.30  17.10  26.20 
1976 03 37.30  19.10  28.20 
1976 04 39.80  20.40  30.09 
1976 05 39.00  19.60  29.30 
1976 06 36.70  22.90  29.80 
1976 07 34.59  23.60  29.09 
1976 08 33.70  23.70  28.70 
1976 09 34.00  23.30  28.65 
1976 10 34.80  22.50  28.65 
1976 11 36.09  20.20  28.15 
1976 12 33.40  17.29  25.35 
1977 01 35.20  16.79  26.00 
1977 02 38.09  17.10  27.59 
1977 03 40.40  20.00  30.20 
1977 04 39.90  20.50  30.20 
1977 05 40.30  20.80  30.55 
1977 06 37.50  23.40  30.45 
1977 07 35.09  23.90  29.50 
1977 08 34.80  23.50  29.15 
1977 09 33.20  22.90  28.05 
1977 10 37.30  22.70  30.00 
1977 11 37.90  17.90  27.90 
1977 12 34.90  18.29  26.60 
1978 01 34.50  18.29  26.40 
1978 02 37.50  17.00  27.25 
1978 03 39.30  19.00  29.15 
1978 04 39.70  20.10  29.90 
1978 05 40.00  22.40  31.20 
1978 06 37.09  24.00  30.55 
1978 07 34.59  24.30  29.45 
1978 08 33.30  23.40  28.34 
1978 09 33.70  23.30  28.50 
1978 10 35.09  23.40  29.25 
1978 11 35.09  20.20  27.65 
1978 12 33.20  17.50  25.35 
