1961 01 99.99 -99.99  26.90 
1961 02 99.99 -99.99  26.40 
1961 03 99.99 -99.99  27.70 
1961 04 99.99 -99.99  28.20 
1961 05 99.99 -99.99  27.60 
1961 06 99.99 -99.99  26.10 
1961 07 99.99 -99.99  25.10 
1961 08 99.99 -99.99  25.50 
1961 09 99.99 -99.99  27.30 
1961 10 99.99 -99.99  28.20 
1961 11 99.99 -99.99  28.80 
1961 12 99.99 -99.99  28.20 
1962 01 99.99 -99.99  26.30 
1962 02 99.99 -99.99  25.90 
1962 03 99.99 -99.99  27.50 
1962 04 99.99 -99.99  27.50 
1962 05 99.99 -99.99  27.30 
1962 06 99.99 -99.99  26.70 
1962 07 99.99 -99.99  25.70 
1962 08 99.99 -99.99  26.10 
1962 09 99.99 -99.99  27.40 
1962 10 99.99 -99.99  28.50 
1962 11 99.99 -99.99  28.70 
1962 12 99.99 -99.99  27.70 
1963 01 99.99 -99.99  25.60 
1963 02 99.99 -99.99  25.70 
1963 03 99.99 -99.99  26.00 
1963 04 99.99 -99.99  26.20 
1963 05 99.99 -99.99  26.20 
1963 06 99.99 -99.99  25.20 
1964 01 99.99 -99.99  27.40 
1964 02 99.99 -99.99  27.80 
1964 03 99.99 -99.99  26.40 
1964 04 99.99 -99.99  27.30 
1964 05 99.99 -99.99  27.20 
1964 06 99.99 -99.99  26.00 
1965 01 99.99 -99.99  25.80 
1965 02 99.99 -99.99  26.50 
1966 01 99.99 -99.99  27.10 
1966 02 99.99 -99.99  26.40 
1966 03 99.99 -99.99  27.40 
1966 04 99.99 -99.99  28.40 
1966 05 99.99 -99.99  27.60 
1966 06 99.99 -99.99  26.40 
1966 07 99.99 -99.99  26.10 
1966 08 99.99 -99.99  26.90 
1966 09 99.99 -99.99  27.30 
1966 10 99.99 -99.99  28.80 
1966 11 99.99 -99.99  28.90 
1966 12 99.99 -99.99  27.70 
1967 01 99.99 -99.99  26.40 
1967 02 99.99 -99.99  25.90 
1967 03 99.99 -99.99  26.10 
1967 04 99.99 -99.99  27.80 
1967 05 99.99 -99.99  27.60 
1967 06 99.99 -99.99  25.40 
1967 07 99.99 -99.99  25.50 
1967 08 99.99 -99.99  26.00 
1967 09 99.99 -99.99  26.80 
1967 10 99.99 -99.99  28.20 
1967 11 99.99 -99.99  28.90 
1967 12 99.99 -99.99  27.40 
1968 01 99.99 -99.99  26.40 
1968 02 99.99 -99.99  25.40 
1968 03 99.99 -99.99  27.40 
1968 04 99.99 -99.99  27.60 
1968 05 99.99 -99.99  26.70 
1968 06 99.99 -99.99  26.50 
1968 07 99.99 -99.99  25.70 
1968 08 99.99 -99.99  26.20 
1968 09 99.99 -99.99  27.90 
1968 10 99.99 -99.99  29.50 
1968 11 99.99 -99.99  29.10 
1968 12 99.99 -99.99  28.20 
1969 01 99.99 -99.99  27.20 
1969 02 99.99 -99.99  26.70 
1969 03 99.99 -99.99  27.80 
1969 04 99.99 -99.99  28.70 
1969 05 99.99 -99.99  28.20 
1969 06 99.99 -99.99  26.40 
1969 07 99.99 -99.99  26.60 
1969 08 99.99 -99.99  27.00 
1969 09 99.99 -99.99  27.60 
1969 10 99.99 -99.99  28.50 
1969 11 99.99 -99.99  29.20 
1969 12 99.99 -99.99  28.00 
1970 01 99.99 -99.99  27.50 
1970 02 99.99 -99.99  27.20 
1970 03 99.99 -99.99  27.30 
1970 04 99.99 -99.99  27.80 
1970 05 99.99 -99.99  27.40 
1970 06 99.99 -99.99  27.00 
1970 07 99.99 -99.99  26.00 
1970 08 99.99 -99.99  26.20 
1970 09 99.99 -99.99  27.30 
1970 10 99.99 -99.99  28.90 
1970 11 99.99 -99.99  28.20 
1970 12 99.99 -99.99  26.90 
1978 01 30.10  23.90  27.00 
1978 02 29.50  23.00  26.25 
1978 03 31.50  23.00  27.25 
1978 04 31.50  23.20  27.35 
1978 05 32.00  24.20  28.10 
1978 06 31.60  22.70  27.15 
1978 07 29.70  21.90  25.80 
1978 08 31.10  21.90  26.50 
1978 09 32.30  21.90  27.09 
1978 10 33.80  23.40  28.59 
1978 11 33.50  24.00  28.75 
1978 12 31.30  23.90  27.59 
1979 01 29.70  23.70  26.70 
1979 02 30.70  23.20  26.95 
1979 03 30.40  23.30  26.84 
1979 04 32.70  22.90  27.80 
1979 05 32.20  23.10  27.65 
1979 06 30.70  22.70  26.70 
1979 07 30.00  21.90  25.95 
1979 08 31.80  21.60  26.70 
1979 09 32.80  22.60  27.70 
1979 10 33.50  23.10  28.30 
1979 11 34.80  24.80  29.80 
1979 12 32.00  24.10  28.05 
1980 01 29.80  24.00  26.90 
1980 02 29.20  23.30  26.25 
1980 03 32.30  23.10  27.70 
1980 04 32.09  23.70  27.90 
1980 05 31.90  23.00  27.45 
1980 06 31.40  22.30  26.84 
1980 07 31.20  21.40  26.30 
1980 08 31.70  21.80  26.75 
1980 09 32.90  21.50  27.20 
1980 10 33.09  22.60  27.84 
1980 11 33.80  23.80  28.80 
1980 12 31.40  24.00  27.70 
1981 01 32.90  23.70  28.30 
1981 02 32.50  23.50  28.00 
1981 03 31.40  23.20  27.30 
1981 04 33.09  23.00  28.05 
1981 05 32.00  23.60  27.80 
1981 06 31.30  22.20  26.75 
1981 07 31.20  22.80  27.00 
1981 08 32.30  21.40  26.84 
1981 09 33.30  23.50  28.40 
1981 10 34.09  22.30  28.20 
1981 11 31.70  23.00  27.35 
1981 12 30.20  23.70  26.95 
1982 01 30.10  23.50  26.80 
1982 02 29.30  23.20  26.25 
1982 03 30.10  22.80  26.45 
1982 04 32.20  22.70  27.45 
1982 05 31.20  22.00  26.60 
1982 06 30.60  21.50  26.05 
1982 07 29.90  20.40  25.15 
1982 08 31.30  21.20  26.25 
1982 09 32.00  20.50  26.25 
1982 10 32.80  20.70  26.75 
1982 11 32.90  22.70  27.80 
1982 12 32.40  23.70  28.05 
1983 01 31.00  23.20  27.10 
1983 02 31.20  23.50  27.35 
1983 03 30.80  23.80  27.30 
1983 04 31.60  23.50  27.55 
1983 05 31.00  23.20  27.10 
1983 06 30.70  22.70  26.70 
1983 07 30.10  21.20  25.65 
1983 08 31.80  21.60  26.70 
1983 09 33.40  22.10  27.75 
1983 10 33.50  23.50  28.50 
1983 11 32.80  23.90  28.34 
1983 12 32.80  23.10  27.95 
1984 01 29.80  23.10  26.45 
1984 02 30.50  23.50  27.00 
1984 03 30.60  23.20  26.90 
1984 04 32.50  23.60  28.05 
1984 05 32.09  23.50  27.80 
1984 06 30.80  22.80  26.80 
1984 07 30.70  21.30  26.00 
1984 08 32.20  22.90  27.55 
1984 09 33.20  22.40  27.80 
1984 10 33.90  23.70  28.80 
1984 11 33.70  23.70  28.70 
1984 12 31.00  23.70  27.35 
1985 01 31.30  23.30  27.30 
1985 02 30.70  23.20  26.95 
1985 03 30.90  22.70  26.80 
1985 04 32.40  23.30  27.85 
1985 05 32.50  22.90  27.70 
1985 06 30.50  23.30  26.90 
1985 07 30.60  22.10  26.35 
1985 08 32.50  21.40  26.95 
1985 09 32.80  21.30  27.05 
1985 10 33.70  21.30  27.50 
1985 11 33.09  22.10  27.59 
1985 12 31.50  24.00  27.75 
1986 01 29.60  23.10  26.35 
1986 02 29.70  22.80  26.25 
1986 03 31.20  22.80  27.00 
1986 04 32.30  22.30  27.30 
1986 05 32.90  22.60  27.75 
1986 06 31.70  22.30  27.00 
1986 07 30.30  21.90  26.09 
1986 08 30.70  21.10  25.90 
1986 09 32.70  21.70  27.20 
1986 10 33.00  22.40  27.70 
1986 11 33.90  23.50  28.70 
1986 12 32.09  23.20  27.65 
1987 01 29.90  23.20  26.55 
1987 02 29.70  23.00  26.35 
1987 03 32.09  22.20  27.15 
1987 04 33.00  22.80  27.90 
1987 05 32.80  23.90  28.34 
1987 06 31.90  22.50  27.20 
1987 07 31.20  22.10  26.65 
1987 08 32.70  21.50  27.10 
1987 09 33.50  21.90  27.70 
1987 10 33.70  21.70  27.70 
1987 11 31.30  24.80  28.05 
1987 12 31.70  23.90  27.80 
1988 01 31.20  23.70  27.45 
1988 02 31.50  23.90  27.70 
1988 03 32.70  23.50  28.10 
1988 04 33.20  22.80  28.00 
1988 05 31.60  22.60  27.10 
1988 06 31.80  21.60  26.70 
1988 07 32.40  22.60  27.50 
1988 08 33.70  23.20  28.45 
1988 09 34.80  23.40  29.09 
1988 10 31.40  24.20  27.80 
1988 11 29.40  23.10  26.25 
1989 01 30.70  22.80  26.75 
1989 02 30.50  22.70  26.60 
1989 03 29.40  22.70  26.05 
1989 04 31.00  23.00  27.00 
1989 05 31.90  22.10  27.00 
1989 06 31.30  22.10  26.70 
1989 07 31.40  21.90  26.65 
1989 08 31.00  21.70  26.35 
1989 09 32.70  21.40  27.05 
1989 10 33.59  23.00  28.30 
1989 11 33.20  23.40  28.30 
1989 12 32.70  23.80  28.25 
1990 01 30.00  23.50  26.75 
1990 02 31.00  23.00  27.00 
1990 03 30.70  22.60  26.65 
1990 04 32.90  22.70  27.80 
1990 05 32.30  22.50  27.40 
1990 06 31.40  20.90  26.15 
1990 07 31.90  21.80  26.84 
