1961 04 31.20  23.50  27.35 
1961 05 30.90  23.10  27.00 
1961 06 28.20  22.00  25.10 
1961 07 27.50  21.80  24.65 
1961 08 27.80  21.70  24.75 
1961 09 28.70  21.90  25.30 
1961 10 29.50  22.10  25.80 
1961 11 31.30  22.60  26.95 
1961 12 31.60  22.90  27.25 
1962 01 31.50  22.80  27.15 
1962 02 32.09  23.10  27.59 
1962 03 31.70  22.40  27.05 
1962 04 31.00  22.60  26.80 
1962 05 30.80  22.60  26.70 
1962 06 29.00  21.70  25.35 
1962 07 28.60  22.10  25.35 
1962 08 27.60  21.40  24.50 
1962 09 28.90  21.80  25.34 
1962 10 30.30  22.40  26.34 
1962 11 33.00  22.80  27.90 
1962 12 31.30  22.40  26.84 
1963 01 31.20  22.10  26.65 
1963 02 31.10  21.80  26.45 
1963 03 31.10  22.40  26.75 
1963 04 30.80  22.00  26.40 
1963 05 30.00  22.20  26.10 
1963 06 28.30  21.50  24.90 
1963 07 27.40  20.80  24.09 
1963 08 27.60  22.30  24.95 
1963 09 27.90  21.60  24.75 
1963 10 28.80  21.90  25.34 
1963 11 30.30  22.40  26.34 
1963 12 31.40  22.30  26.84 
1964 01 31.90  22.50  27.20 
1964 02 31.00  21.80  26.40 
1964 03 31.60  22.30  26.95 
1964 04 31.30  22.10  26.70 
1965 04 30.60  21.20  25.90 
1965 05 29.50  21.40  25.45 
1965 06 28.40  21.00  24.70 
1965 07 26.60  19.50  23.05 
1965 08 27.10  20.29  23.70 
1965 09 28.10  20.80  24.45 
1965 10 29.30  21.40  25.34 
1965 11 30.90  21.90  26.40 
1965 12 31.60  22.00  26.80 
1966 01 31.50  21.80  26.65 
1966 02 31.00  21.50  26.25 
1966 03 30.80  21.70  26.25 
1966 04 30.40  21.90  26.15 
1966 05 29.30  21.20  25.25 
1966 06 27.70  21.00  24.35 
1966 07 27.20  20.40  23.80 
1966 08 27.60  20.90  24.25 
1966 09 28.60  20.80  24.70 
1966 10 29.10  21.10  25.10 
1966 11 30.60  20.80  25.70 
1966 12 31.00  21.70  26.35 
1967 01 31.30  21.70  26.50 
1967 02 31.20  21.90  26.55 
1967 03 31.10  21.80  26.45 
1967 04 30.50  21.40  25.95 
1967 05 29.70  21.40  25.55 
1967 06 28.10  20.70  24.40 
1967 07 27.00  20.40  23.70 
1967 08 27.60  20.40  24.00 
1967 09 28.00  20.20  24.10 
1967 10 29.40  21.00  25.20 
1967 11 30.80  21.50  26.15 
1967 12 31.40  21.50  26.45 
1968 01 31.50  21.90  26.70 
1968 02 32.20  21.80  27.00 
1968 03 31.00  21.20  26.10 
1968 04 30.80  21.20  26.00 
1968 05 30.90  22.00  26.45 
1968 06 28.90  20.90  24.90 
1968 07 28.50  20.60  24.55 
1968 08 28.40  20.60  24.50 
1968 09 28.90  20.50  24.70 
1968 10 29.60  21.10  25.35 
1968 11 29.60  20.90  25.25 
1968 12 31.00  20.10  25.55 
1969 02 31.70  21.60  26.65 
1969 03 31.70  22.20  26.95 
1969 04 30.80  21.80  26.30 
1969 05 29.90  22.00  25.95 
1969 06 28.70  21.40  25.05 
1969 07 27.40  20.40  23.90 
1969 08 27.60  20.50  24.05 
1969 09 28.00  20.70  24.35 
1969 10 29.10  21.00  25.05 
1969 11 30.90  21.50  26.20 
1969 12 31.40  21.40  26.40 
1970 01 31.50  21.00  26.25 
1970 02 31.90  21.60  26.75 
1970 03 31.60  21.50  26.55 
1970 04 30.90  21.60  26.25 
1970 05 29.90  21.30  25.59 
1970 06 29.60  21.20  25.40 
1970 07 27.40  20.90  24.15 
1970 08 27.70  20.40  24.05 
1970 09 29.60  20.90  25.25 
1970 10 30.20  21.00  25.60 
1970 11 31.20  21.50  26.35 
1970 12 31.00  21.40  26.20 
1971 01 31.00  21.30  26.15 
1971 02 31.20  21.00  26.10 
1971 03 31.50  21.60  26.55 
1971 04 31.00  21.40  26.20 
1971 05 30.90  21.10  26.00 
1971 06 28.90  20.50  24.70 
1971 07 27.40  20.50  23.95 
1971 08 28.70  20.80  24.75 
1971 09 29.20  20.80  25.00 
1971 10 30.60  21.00  25.80 
1972 03 31.50  21.10  26.30 
1972 04 30.30  21.30  25.80 
1972 05 29.30  20.90  25.09 
1972 06 27.10  20.70  23.90 
1972 07 27.00  20.20  23.60 
1972 08 28.30  19.70  24.00 
1972 09 27.30  19.90  23.59 
1972 10 29.20  21.10  25.15 
1972 11 30.50  21.40  25.95 
1972 12 31.20  21.50  26.35 
1973 02 31.60  21.80  26.70 
1973 03 31.20  21.70  26.45 
1973 04 30.60  21.70  26.15 
1973 05 30.10  21.50  25.80 
1973 06 29.60  21.20  25.40 
1973 07 27.90  20.40  24.15 
1973 08 28.20  20.60  24.40 
1973 09 29.30  20.70  25.00 
1973 10 30.10  21.10  25.60 
1973 11 31.50  21.70  26.60 
1973 12 31.10  21.20  26.15 
1974 01 31.30  21.00  26.15 
1974 02 31.00  21.10  26.05 
1974 03 32.00  21.90  26.95 
1974 04 30.70  21.70  26.20 
1974 05 30.20  20.90  25.55 
1974 06 29.60  20.40  25.00 
1974 07 28.00  20.40  24.20 
1974 08 28.50  20.40  24.45 
1974 09 29.60  20.80  25.20 
1974 10 31.00  21.00  26.00 
1974 11 30.30  20.90  25.59 
1974 12 30.70  21.10  25.90 
1975 01 31.00  21.30  26.15 
1975 02 30.80  21.20  26.00 
1975 03 30.90  20.70  25.80 
1975 04 31.00  20.90  25.95 
1975 05 30.20  21.10  25.65 
1975 06 29.00  20.80  24.90 
1975 07 28.40  20.29  24.34 
1975 08 28.50  19.70  24.10 
1975 09 29.10  20.60  24.85 
1975 10 30.50  20.90  25.70 
1975 11 30.80  20.90  25.84 
1975 12 30.90  21.10  26.00 
1995 06 29.60  23.00  26.30 
1996 09 30.80  23.10  26.95 
1997 07 28.10  22.50  25.30 
1997 08 29.80  22.10  25.95 
1999 12 32.70  23.70  28.20 
2000 02 32.30  23.40  27.84 
2000 09 31.20  22.90  27.05 
2000 10 32.00  23.50  27.75 
2001 04 32.40  23.70  28.05 
