1979 01 32.40  17.79  25.10 
1979 02 37.40  16.70  27.05 
1979 03 37.30  20.00  28.65 
1979 04 39.00  20.70  29.85 
1979 05 36.90  23.10  30.00 
1979 06 33.00  23.70  28.35 
1979 07 31.80  23.50  27.65 
1979 08 31.50  23.20  27.35 
1979 09 32.50  23.70  28.10 
1979 10 34.09  23.10  28.59 
1979 11 36.00  20.90  28.45 
1979 12 34.30  18.40  26.34 
1980 01 34.40  17.10  25.75 
1980 02 35.80  19.00  27.40 
1980 03 37.40  19.60  28.50 
1980 04 39.00  21.10  30.05 
1980 05 38.30  21.60  29.95 
1980 06 32.90  23.50  28.20 
1980 07 32.20  23.60  27.90 
1980 08 31.40  24.20  27.80 
1980 09 32.59  23.70  28.15 
1980 10 34.20  22.90  28.55 
1980 11 34.70  20.40  27.55 
1980 12 32.70  17.20  24.95 
1981 01 33.40  17.50  25.45 
1981 02 35.20  17.90  26.55 
1981 03 40.40  20.29  30.35 
1981 04 38.50  21.30  29.90 
1981 05 36.20  22.60  29.40 
1981 06 35.90  24.30  30.10 
1981 07 32.09  24.20  28.15 
1981 08 31.20  23.10  27.15 
1981 09 32.00  23.00  27.50 
1981 10 33.59  23.20  28.40 
1981 11 34.90  21.10  28.00 
1981 12 34.59  16.60  25.59 
1982 01 33.90  15.00  24.45 
1982 02 34.09  17.20  25.65 
1982 03 36.30  18.70  27.50 
1982 04 37.40  20.50  28.95 
1982 05 36.59  20.80  28.70 
1982 06 35.09  23.70  29.40 
1982 07 32.90  23.70  28.30 
1982 08 31.10  23.90  27.50 
1982 09 32.30  23.20  27.75 
1982 10 33.20  22.70  27.95 
1982 11 34.80  19.29  27.05 
1982 12 32.00  16.70  24.35 
1983 01 34.20  17.50  25.85 
1983 02 37.00  18.70  27.85 
1983 03 38.40  20.80  29.60 
1983 04 37.20  20.50  28.85 
1983 05 36.70  23.10  29.90 
1983 06 35.40  24.90  30.15 
1983 07 32.59  24.40  28.50 
1983 08 33.00  24.50  28.75 
1983 09 33.30  23.60  28.45 
1983 10 34.59  24.00  29.30 
1983 11 37.40  20.80  29.10 
1983 12 34.80  17.90  26.34 
