1976 01 31.20  13.00  22.10 
1976 02 34.20  16.70  25.45 
1976 03 35.09  18.50  26.80 
1976 04 38.40  21.70  30.05 
1976 05 37.40  20.10  28.75 
1976 07 32.30  23.40  27.84 
1976 08 32.00  23.10  27.55 
1976 09 32.59  23.10  27.84 
1976 10 33.09  22.40  27.75 
1976 11 33.90  20.70  27.30 
1976 12 32.70  15.80  24.25 
1977 01 34.30  16.50  25.40 
1977 02 36.20  16.70  26.45 
1977 03 37.90  19.00  28.45 
1977 04 38.90  21.40  30.15 
1977 05 39.00  22.90  30.95 
1977 06 37.09  23.90  30.50 
1977 07 33.09  23.70  28.40 
1977 08 32.00  23.50  27.75 
1977 09 31.60  22.80  27.20 
1977 10 34.20  22.70  28.45 
1977 11 36.09  15.40  25.75 
1977 12 34.30  14.90  24.59 
1978 01 34.20  15.30  24.75 
1978 02 37.09  15.60  26.34 
1978 03 37.70  16.60  27.15 
1978 04 38.90  20.40  29.65 
1978 05 39.30  23.10  31.20 
1978 06 35.20  24.20  29.70 
1978 07 31.90  23.10  27.50 
1978 08 32.09  22.20  27.15 
1978 09 32.30  22.80  27.55 
1978 10 33.70  22.80  28.25 
1978 11 32.30  18.10  25.20 
1978 12 32.59  15.10  23.84 
1979 01 33.50  16.50  25.00 
1979 02 35.90  15.00  25.45 
1979 03 37.50  20.40  28.95 
1979 04 39.09  21.50  30.30 
1979 05 38.59  23.20  30.90 
1979 06 35.00  23.40  29.20 
1979 07 33.09  23.20  28.15 
1979 08 32.59  23.30  27.95 
1979 09 33.00  23.80  28.40 
1979 10 34.20  23.00  28.60 
1979 11 35.59  18.40  27.00 
1979 12 33.70  14.80  24.25 
1980 01 35.00  15.30  25.15 
1980 02 35.09  17.50  26.30 
1980 03 38.09  20.29  29.20 
1980 04 37.70  22.80  30.25 
1980 05 39.80  23.50  31.65 
1980 06 36.90  23.80  30.35 
1980 07 34.00  24.00  29.00 
1980 08 31.80  23.30  27.55 
1980 09 32.50  23.40  27.95 
1980 10 35.09  22.20  28.65 
1980 11 35.50  18.60  27.05 
1980 12 30.70  14.10  22.40 
1981 01 33.59  14.50  24.05 
1981 02 35.80  17.79  26.80 
1981 03 38.90  19.29  29.10 
1981 04 39.59  22.10  30.84 
1981 05 38.20  23.80  31.00 
1981 06 38.20  24.50  31.35 
1981 07 32.70  24.10  28.40 
1981 08 30.80  22.50  26.65 
1981 09 32.80  22.90  27.84 
1981 10 34.00  22.30  28.15 
1981 11 32.50  19.00  25.75 
1981 12 33.70  12.10  22.90 
1982 01 33.70  14.30  24.00 
1982 02 34.70  15.40  25.05 
1982 03 37.00  18.50  27.75 
1982 04 38.30  21.90  30.09 
1982 05 37.00  22.20  29.60 
1982 06 36.90  24.20  30.55 
1982 07 32.40  23.80  28.10 
1982 08 31.70  23.40  27.55 
1982 09 32.90  23.10  28.00 
1982 10 34.70  22.40  28.55 
1982 11 35.40  16.50  25.95 
1982 12 32.50  14.00  23.25 
1983 01 33.40  15.30  24.35 
1983 02 36.20  17.20  26.70 
1983 03 39.09  21.10  30.09 
1983 04 38.70  21.60  30.15 
1983 05 38.70  25.10  31.90 
1983 06 36.50  24.80  30.65 
1983 07 32.80  23.50  28.15 
1983 08 33.20  23.70  28.45 
1983 09 32.80  23.30  28.05 
1983 10 33.59  22.80  28.20 
1983 11 37.50  18.29  27.90 
1983 12 33.30  17.10  25.20 
