1949 10 30.30  23.10  26.70 
1949 11 28.40  19.90  24.15 
1949 12 28.70  20.80  24.75 
1950 01 29.70  20.70  25.20 
1950 02 29.70  20.90  25.30 
1950 03 32.50  21.90  27.20 
1950 04 33.09  23.00  28.05 
1950 05 33.80  23.80  28.80 
1950 06 31.60  23.20  27.40 
1950 07 30.70  23.10  26.90 
1950 08 31.90  24.00  27.95 
1950 09 31.30  23.30  27.30 
1950 10 28.80  21.90  25.34 
1950 11 28.20  20.00  24.10 
1950 12 28.30  18.79  23.55 
1951 01 29.30  19.00  24.15 
1951 02 28.50  17.50  23.00 
1951 03 33.70  21.20  27.45 
1951 04 35.50  21.40  28.45 
1951 05 35.40  21.90  28.65 
1951 06 32.70  23.50  28.10 
1951 07 31.80  23.50  27.65 
1951 08 33.30  24.00  28.65 
1951 09 31.60  22.10  26.85 
1951 10 30.20  22.90  26.55 
1951 11 29.20  20.90  25.05 
1951 12 31.00  20.29  25.65 
1952 01 29.10  20.70  24.90 
1952 02 30.60  19.20  24.90 
1952 03 33.00  22.30  27.65 
1952 04 33.40  23.10  28.25 
1952 05 34.20  23.40  28.80 
1952 06 31.70  23.40  27.55 
1952 07 30.60  23.10  26.85 
1952 08 31.90  23.20  27.55 
1952 09 30.70  23.10  26.90 
1952 10 27.50  21.10  24.30 
1952 11 29.50  21.50  25.50 
1952 12 28.50  19.90  24.20 
1953 01 29.30  18.60  23.95 
1953 02 30.00  19.90  24.95 
1953 03 32.80  21.70  27.25 
1953 04 33.90  23.70  28.80 
1953 05 34.20  23.90  29.05 
1953 06 33.50  23.80  28.65 
1953 07 32.90  23.90  28.40 
1953 08 33.70  24.20  28.95 
1953 09 32.40  23.60  28.00 
1953 10 30.00  22.60  26.30 
1953 11 28.70  20.90  24.80 
1953 12 27.50  19.50  23.50 
1954 01 28.70  20.20  24.45 
1954 02 30.00  19.79  24.90 
1954 03 30.60  20.70  25.65 
1954 04 33.59  23.10  28.34 
1954 05 34.30  23.90  29.09 
1954 06 32.00  23.20  27.60 
1954 07 31.70  23.20  27.45 
1954 08 33.00  23.80  28.40 
1954 09 31.90  23.30  27.59 
1954 10 29.60  22.40  26.00 
1954 11 29.00  20.70  24.85 
1954 12 27.70  19.29  23.50 
1955 01 28.50  19.40  23.95 
1955 02 28.80  18.00  23.40 
1955 03 31.90  21.10  26.50 
1955 04 33.80  23.20  28.50 
1955 05 34.90  24.20  29.55 
1955 06 32.90  23.90  28.40 
1955 07 30.10  22.80  26.45 
1955 08 31.80  23.20  27.50 
1955 09 28.70  22.90  25.80 
1955 10 28.40  22.00  25.20 
1955 11 29.40  21.70  25.55 
1955 12 27.80  20.10  23.95 
1956 01 28.00  19.00  23.50 
1956 02 30.80  19.50  25.15 
1956 03 31.40  20.70  26.05 
1956 04 33.70  23.50  28.60 
1956 05 32.70  23.50  28.10 
1956 06 30.70  22.60  26.65 
1956 07 31.30  22.90  27.09 
1956 08 32.90  23.60  28.25 
1956 09 30.70  23.30  27.00 
1956 10 31.40  22.70  27.05 
1956 11 28.00  20.70  24.35 
1956 12 27.40  20.70  24.05 
1957 01 29.20  21.20  25.20 
1957 02 30.60  22.00  26.30 
1957 03 31.50  21.50  26.50 
1957 04 33.90  23.90  28.90 
1957 05 34.50  24.60  29.55 
1957 06 32.40  24.00  28.20 
1957 07 32.09  23.70  27.90 
1957 08 33.30  24.30  28.80 
1957 09 32.70  23.60  28.15 
1957 10 31.70  22.60  27.15 
1957 11 30.80  21.60  26.20 
1957 12 26.90  19.50  23.20 
1958 01 25.70  18.70  22.20 
1958 02 28.80  19.70  24.25 
1958 03 31.90  21.40  26.65 
1958 04 34.00  23.20  28.60 
1958 05 34.90  24.60  29.75 
1958 06 32.59  24.00  28.30 
1958 07 31.40  23.70  27.55 
1958 08 32.80  23.80  28.30 
1958 09 31.60  23.50  27.55 
1958 10 30.70  23.50  27.10 
1958 11 30.10  22.70  26.40 
1958 12 26.50  20.50  23.50 
1959 01 27.00  19.29  23.15 
1959 02 30.80  21.60  26.20 
1959 03 30.40  20.90  25.65 
1959 04 32.70  22.70  27.70 
1959 05 35.70  24.40  30.05 
1959 06 32.00  23.50  27.75 
1959 07 31.60  23.60  27.60 
1959 08 32.09  23.50  27.80 
1959 09 31.30  23.40  27.34 
1959 10 30.20  23.00  26.60 
1959 11 27.40  19.90  23.65 
1959 12 27.30  19.70  23.50 
1960 01 28.00  19.79  23.90 
1960 02 28.50  18.40  23.45 
1960 03 30.20  20.60  25.40 
1960 04 33.09  22.70  27.90 
1960 05 34.20  23.90  29.05 
1960 06 33.40  24.10  28.75 
1960 07 31.10  23.40  27.25 
1960 08 31.50  23.70  27.60 
1960 09 30.40  23.40  26.90 
1960 10 30.60  23.60  27.10 
1960 11 28.30  22.70  25.50 
1960 12 26.60  19.70  23.15 
1961 01 25.50  19.00  22.25 
1961 02 28.90  19.40  24.15 
1961 03 31.80  21.80  26.80 
1961 04 33.50  23.10  28.30 
1961 05 34.59  24.60  29.59 
1961 06 31.90  23.70  27.80 
1961 07 30.80  23.30  27.05 
1961 08 33.09  24.00  28.55 
1961 09 31.00  23.10  27.05 
1961 10 30.00  22.70  26.35 
1961 11 27.70  21.60  24.65 
1961 12 28.40  20.60  24.50 
1962 01 26.30  18.50  22.40 
1962 02 31.10  21.10  26.10 
1962 03 30.60  20.80  25.70 
1962 04 31.50  21.70  26.60 
1962 05 34.09  24.20  29.15 
1962 06 31.50  23.30  27.40 
1962 07 31.90  23.80  27.84 
1962 08 33.00  23.90  28.45 
1962 09 30.90  23.10  27.00 
1962 10 30.10  22.90  26.50 
1962 11 29.80  21.40  25.59 
1962 12 28.30  20.90  24.59 
1963 01 27.80  19.00  23.40 
1963 02 29.10  19.00  24.05 
1963 03 32.00  21.70  26.85 
1963 04 35.09  23.30  29.20 
1963 05 35.30  24.40  29.84 
1963 06 35.59  23.90  29.75 
1963 07 32.40  23.40  27.90 
1963 08 32.09  24.20  28.15 
1963 09 31.30  23.60  27.45 
1963 10 29.80  22.90  26.34 
1963 11 29.00  21.60  25.30 
1963 12 26.30  18.29  22.30 
1964 01 27.00  17.60  22.30 
1964 02 29.00  19.40  24.20 
1964 03 32.59  21.30  26.95 
1964 04 33.70  24.10  28.90 
1964 05 34.30  24.20  29.25 
1964 06 31.60  23.40  27.50 
1964 07 30.90  23.20  27.05 
1964 08 32.59  23.30  27.95 
1964 09 32.00  23.20  27.60 
1964 10 29.30  21.50  25.40 
1964 11 30.20  21.70  25.95 
1964 12 27.70  19.90  23.80 
1965 01 27.90  19.29  23.59 
1965 02 29.60  19.00  24.30 
1965 03 31.00  20.20  25.60 
1965 04 34.20  23.10  28.65 
1965 05 35.50  24.60  30.05 
1965 06 32.80  23.50  28.15 
1965 07 31.80  23.40  27.59 
1965 08 31.70  23.50  27.60 
1965 09 32.50  23.50  28.00 
1965 10 28.50  22.00  25.25 
1965 11 29.70  22.50  26.10 
1965 12 28.60  20.29  24.45 
1966 01 27.00  18.90  22.95 
1966 02 28.20  19.00  23.60 
1966 03 30.00  20.50  25.25 
1966 04 34.59  23.60  29.09 
1966 05 34.70  24.20  29.45 
1966 06 33.50  24.10  28.80 
1966 07 32.70  23.60  28.15 
1966 08 32.00  23.60  27.80 
1966 09 30.40  22.60  26.50 
1966 10 29.00  22.00  25.50 
1966 11 28.20  19.70  23.95 
1966 12 27.70  18.29  23.00 
1967 01 27.30  18.00  22.65 
1967 02 28.70  18.40  23.55 
1967 03 32.00  21.10  26.55 
1967 04 34.40  22.70  28.55 
1967 05 34.90  23.60  29.25 
1967 06 32.40  23.30  27.85 
1967 07 32.20  23.10  27.65 
1967 08 32.59  23.00  27.80 
1967 09 30.50  22.70  26.60 
1967 10 28.70  22.00  25.35 
1967 11 29.00  20.60  24.80 
1967 12 29.30  19.90  24.59 
1968 01 27.00  19.40  23.20 
1968 02 27.80  18.50  23.15 
1968 03 29.20  18.70  23.95 
1968 04 33.90  21.80  27.85 
1968 05 33.90  23.00  28.45 
1968 06 32.40  23.10  27.75 
1968 07 31.60  22.80  27.20 
1968 08 32.70  23.10  27.90 
1968 09 31.40  22.90  27.15 
1968 10 30.30  22.20  26.25 
1968 11 30.40  20.90  25.65 
1968 12 28.50  19.20  23.85 
1969 01 29.00  18.79  23.90 
1969 02 31.00  20.80  25.90 
1969 03 29.80  20.29  25.05 
1969 04 35.09  23.80  29.45 
1969 05 34.90  24.20  29.55 
1969 06 34.59  24.70  29.65 
1969 07 33.09  23.80  28.45 
1969 08 30.30  22.80  26.55 
1969 09 29.60  23.00  26.30 
1969 10 30.00  22.80  26.40 
1969 11 27.80  20.50  24.15 
1969 12 28.80  19.60  24.20 
1970 01 27.40  18.90  23.15 
1970 02 27.60  17.90  22.75 
1970 03 31.50  20.29  25.90 
1970 04 34.30  22.60  28.45 
1970 05 34.50  22.70  28.60 
1970 06 32.50  23.70  28.10 
1970 07 31.00  23.00  27.00 
1970 08 31.20  22.90  27.05 
1970 09 29.80  22.20  26.00 
1970 10 29.90  22.70  26.30 
1970 11 27.20  19.00  23.10 
1970 12 29.10  21.20  25.15 
1971 01 28.70  19.70  24.20 
1971 02 30.80  18.50  24.65 
1971 03 31.90  20.10  26.00 
1971 04 31.70  20.90  26.30 
1971 05 34.09  23.50  28.80 
1971 06 33.50  22.90  28.20 
1971 07 31.80  23.00  27.40 
1971 08 31.00  22.30  26.65 
1971 09 30.70  22.60  26.65 
1971 10 30.70  22.40  26.55 
1971 11 29.60  21.20  25.40 
1971 12 30.10  21.00  25.55 
1972 01 29.80  19.70  24.75 
1972 02 30.20  19.00  24.60 
1972 03 33.30  21.90  27.59 
1972 04 34.50  23.60  29.05 
1972 05 35.09  24.00  29.55 
1972 06 31.90  23.30  27.59 
1972 07 31.10  23.10  27.10 
1972 08 32.20  23.20  27.70 
1972 09 32.90  23.30  28.10 
1972 10 32.20  23.50  27.85 
1972 11 31.50  22.70  27.10 
1972 12 28.90  20.20  24.55 
1973 01 27.80  19.20  23.50 
1973 02 27.70  19.29  23.50 
1973 03 34.09  22.40  28.25 
1973 04 32.80  22.80  27.80 
1973 05 33.90  23.80  28.85 
1973 06 32.80  23.30  28.05 
1973 07 31.70  23.00  27.35 
1973 08 30.00  22.70  26.35 
1973 09 30.10  22.30  26.20 
1973 10 29.00  22.20  25.60 
1973 11 30.10  22.10  26.10 
1973 12 27.70  17.90  22.80 
1974 01 29.70  20.70  25.20 
1974 02 29.00  18.40  23.70 
1974 03 33.40  21.50  27.45 
1974 04 33.40  22.40  27.90 
1974 05 33.80  23.50  28.65 
1974 06 29.70  22.60  26.15 
1974 07 30.40  22.50  26.45 
1974 08 32.00  23.30  27.65 
1974 09 30.80  22.10  26.45 
1974 10 28.10  21.20  24.65 
1974 11 28.90  21.20  25.05 
1974 12 28.70  20.29  24.50 
1975 01 27.80  19.29  23.55 
1975 02 30.70  19.29  25.00 
1975 03 33.50  21.80  27.65 
1975 04 34.59  23.30  28.95 
1975 05 34.59  23.80  29.20 
1975 06 31.50  22.80  27.15 
1975 07 31.90  22.60  27.25 
1975 08 32.59  23.10  27.84 
1975 09 30.20  22.20  26.20 
1975 10 29.10  21.50  25.30 
1975 11 29.20  21.00  25.10 
1975 12 27.30  19.50  23.40 
1976 01 26.00  17.40  21.70 
1976 02 28.60  18.50  23.55 
1976 03 33.09  20.90  27.00 
1976 04 34.50  22.50  28.50 
1976 05 34.40  23.30  28.85 
1976 06 32.80  23.40  28.09 
1976 07 32.20  22.90  27.55 
1976 08 32.09  23.20  27.65 
1976 09 32.40  23.00  27.70 
1976 10 31.20  22.20  26.70 
1976 11 27.60  19.70  23.65 
1976 12 26.90  17.90  22.40 
1977 01 28.20  18.20  23.20 
1977 02 27.70  18.60  23.15 
1977 03 32.40  19.79  26.10 
1977 04 32.70  21.80  27.25 
1977 05 35.50  23.90  29.70 
1977 06 34.00  23.50  28.75 
1977 07 33.70  23.50  28.60 
1977 08 34.90  23.60  29.25 
1977 09 34.20  23.60  28.90 
1977 10 31.10  22.60  26.85 
1977 11 30.20  21.10  25.65 
1977 12 29.50  20.29  24.90 
1978 01 28.10  18.70  23.40 
1978 02 28.80  18.20  23.50 
1978 03 31.00  19.50  25.25 
1978 04 34.50  22.90  28.70 
1978 05 35.20  24.50  29.85 
1978 06 31.50  22.80  27.15 
1978 07 31.60  22.60  27.10 
1978 08 32.70  23.30  28.00 
1978 09 30.00  22.20  26.10 
1978 10 28.90  21.40  25.15 
1978 11 30.10  22.10  26.10 
1978 12 29.80  20.00  24.90 
1979 01 28.20  17.29  22.75 
1979 02 29.70  18.50  24.10 
1979 03 32.09  20.80  26.45 
1979 04 34.59  23.30  28.95 
1979 05 34.70  23.30  29.00 
1979 06 32.40  23.20  27.80 
1979 07 32.70  23.30  28.00 
1979 08 32.00  22.90  27.45 
1979 09 28.80  22.00  25.40 
1979 10 30.10  22.30  26.20 
1979 11 27.10  20.29  23.70 
1979 12 26.70  18.60  22.65 
1980 01 29.80  19.20  24.50 
1980 02 27.80  18.20  23.00 
1980 03 32.80  20.60  26.70 
1980 04 31.80  21.90  26.84 
1980 05 35.70  24.20  29.95 
1980 06 33.30  23.90  28.59 
1980 07 33.09  23.20  28.15 
1980 08 30.70  22.50  26.60 
1980 09 30.80  22.60  26.70 
1980 10 30.10  22.50  26.30 
1980 11 27.80  19.79  23.80 
1980 12 26.40  18.90  22.65 
1981 01 26.90  18.29  22.59 
1981 02 27.40  18.70  23.05 
1981 03 32.50  20.70  26.60 
1981 04 34.30  22.80  28.55 
1981 05 35.30  23.70  29.50 
1981 06 30.80  22.60  26.70 
1981 07 31.10  22.90  27.00 
1981 08 30.60  22.80  26.70 
1981 09 30.10  22.90  26.50 
1981 10 30.30  22.50  26.40 
1981 11 30.10  20.70  25.40 
1981 12 30.10  20.40  25.25 
1982 01 30.40  19.90  25.15 
1982 02 30.20  20.50  25.35 
1982 03 33.20  20.80  27.00 
1982 04 35.09  23.50  29.30 
1982 05 34.30  23.90  29.09 
1982 06 32.80  23.30  28.05 
1982 07 32.59  22.80  27.70 
1982 08 34.20  23.80  29.00 
1982 09 33.20  23.20  28.20 
1982 10 29.70  22.00  25.85 
1982 11 30.50  21.40  25.95 
1982 12 29.10  19.60  24.35 
1983 01 28.40  19.20  23.80 
1983 02 29.90  19.29  24.59 
1983 03 32.09  20.10  26.09 
1983 04 34.00  21.60  27.80 
1983 05 36.40  24.40  30.40 
1983 06 34.70  23.80  29.25 
1983 07 33.59  23.70  28.65 
1983 08 34.30  23.80  29.05 
1983 09 31.50  22.80  27.15 
1983 10 31.70  22.70  27.20 
1983 11 32.50  21.40  26.95 
1983 12 29.60  19.79  24.70 
1984 01 27.40  18.40  22.90 
1984 02 29.30  19.10  24.20 
1984 03 31.40  20.20  25.80 
1984 04 33.90  21.60  27.75 
1984 05 33.40  22.90  28.15 
1984 06 31.90  22.60  27.25 
1984 07 30.60  22.80  26.70 
1984 08 31.00  22.80  26.90 
1984 09 29.20  22.10  25.65 
1984 10 31.20  22.50  26.85 
1984 11 29.90  20.00  24.95 
1984 12 29.80  20.29  25.05 
1985 01 27.70  17.70  22.70 
1985 02 29.50  19.10  24.30 
1985 04 33.80  22.10  27.95 
1985 05 35.50  23.30  29.40 
1985 06 33.09  23.30  28.20 
1985 07 32.30  22.60  27.45 
1985 08 32.00  22.80  27.40 
1985 09 32.30  22.80  27.55 
1985 10 32.40  22.80  27.60 
1985 11 31.30  22.00  26.65 
1985 12 29.00  20.50  24.75 
1986 01 27.20  18.70  22.95 
1986 02 31.20  22.80  27.00 
1986 03 30.00  18.90  24.45 
1986 04 35.00  22.60  28.80 
1986 05 33.80  23.20  28.50 
1986 06 31.70  23.40  27.55 
1986 07 32.20  23.10  27.65 
1986 08 32.80  23.40  28.09 
1986 09 31.70  23.50  27.60 
1986 10 30.40  22.30  26.34 
1986 11 30.60  22.30  26.45 
1986 12 28.20  20.60  24.40 
1987 01 27.73  17.81  22.77 
1987 02 29.77  19.82  24.79 
1987 03 30.85  20.50  25.67 
1987 04 31.70  20.97  26.33 
1987 05 35.06  24.18  29.62 
1987 06 33.08  23.48  28.28 
1987 07 32.45  23.74  28.09 
1987 08 32.68  23.35  28.01 
1987 09 33.40  23.82  28.61 
1987 10 30.73  22.08  26.40 
1987 11 29.93  21.02  25.47 
1987 12 29.15  20.15  24.65 
1988 01 26.85  19.11  22.98 
1988 02 28.78  19.57  24.17 
1988 03 31.65  20.81  26.23 
1988 04 34.25  22.02  28.13 
1988 05 35.50  23.65  29.57 
1988 06 32.98  23.47  28.22 
1988 07 31.40  23.15  27.27 
1988 08 30.39  23.21  26.80 
1988 09 29.55  22.65  26.09 
1988 10 28.23  22.06  25.14 
1988 11 30.12  21.47  25.79 
1988 12 27.89  20.06  23.97 
1989 01 29.27  21.06  25.16 
1989 02 29.11  19.70  24.40 
1989 03 30.10  19.12  24.61 
1989 04 33.98  21.72  27.84 
1989 05 34.58  23.50  29.04 
1989 06 31.95  23.20  27.57 
1989 07 32.40  23.03  27.71 
1989 08 32.52  22.95  27.73 
1989 09 28.65  22.30  25.47 
1989 10 30.02  21.84  25.93 
1989 11 30.75  22.28  26.51 
1989 12 27.33  17.57  22.45 
1990 01 28.16  20.39  24.27 
1990 02 30.04  20.12  25.08 
1990 03 31.27  21.73  26.50 
1990 04 34.55  23.63  29.09 
1990 05 34.52  24.15  29.33 
1990 06 31.82  23.55  27.68 
1990 07 31.47  23.47  27.47 
1990 08 32.95  23.84  28.39 
1990 09 31.82  23.58  27.70 
1990 10 31.52  22.97  27.24 
1990 11 29.55  21.22  25.38 
1990 12 27.68  19.52  23.60 
1991 01 29.98  20.15  25.06 
1991 02 29.04  19.66  24.35 
1991 03 32.75  21.74  27.25 
1991 04 35.13  23.32  29.22 
1991 05 35.63  24.19  29.91 
1991 06 33.25  23.85  28.55 
1991 07 31.79  23.66  27.72 
1991 08 33.84  23.79  28.82 
1991 09 31.25  23.42  27.33 
1991 10 29.81  22.60  26.20 
1991 11 28.47  20.50  24.48 
1991 12 27.53  20.98  24.25 
1992 01 26.89  19.12  23.00 
1992 02 29.09  19.31  24.20 
1992 03 32.65  21.66  27.15 
1992 04 33.91  23.55  28.73 
1992 05 34.45  23.84  29.14 
1992 06 33.20  24.08  28.64 
1992 07 32.18  23.08  27.63 
1992 08 31.69  23.31  27.50 
1992 09 31.52  23.30  27.41 
1992 10 31.37  22.73  27.05 
1992 11 29.40  21.12  25.26 
1992 12 29.61  21.08  25.34 
1993 01 28.56  20.89  24.72 
1993 02 30.32  20.39  25.35 
1993 03 32.45  21.18  26.81 
1993 04 34.00  23.13  28.56 
1993 05 35.23  24.81  30.02 
1993 06 31.77  23.77  27.77 
1993 07 31.26  23.82  27.54 
1993 08 32.37  23.34  27.85 
1993 09 32.05  23.07  27.56 
1993 10 30.47  22.44  26.45 
1993 11 28.12  21.23  24.67 
1993 12 27.68  20.53  24.10 
1994 01 27.55  19.76  23.65 
1994 02 29.45  20.41  24.93 
1994 03 31.40  20.60  26.00 
1994 04 33.40  22.85  28.12 
1994 05 35.18  24.69  29.93 
1994 06 34.13  24.10  29.11 
1994 07 34.40  24.27  29.33 
1994 08 32.77  23.85  28.31 
1994 09 32.77  23.73  28.25 
1994 10 31.26  23.27  27.26 
1994 11 31.95  22.82  27.38 
1994 12 29.79  22.00  25.89 
1995 01 28.77  20.32  24.54 
1995 02 30.12  20.66  25.39 
1995 03 32.32  21.78  27.05 
1995 04 33.52  23.70  28.61 
1995 05 33.71  23.58  28.64 
1995 06 32.77  23.93  28.35 
1995 07 32.63  23.31  27.97 
1995 08 31.95  23.00  27.47 
1995 09 32.73  23.13  27.93 
1995 10 31.13  22.45  26.79 
1995 11 30.25  22.08  26.16 
1995 12 28.68  20.81  24.74 
1996 01 28.37  18.53  23.45 
1996 02 30.12  19.17  24.64 
1996 03 31.03  19.45  25.24 
1996 04 33.08  21.98  27.53 
1996 05 34.23  24.32  29.27 
1996 06 34.02  23.97  28.99 
1996 07 32.71  23.37  28.04 
1996 08 33.25  23.05  28.15 
1996 09 33.98  22.15  28.06 
1996 10 31.47  21.34  26.40 
1996 11 28.68  20.57  24.62 
1996 12 28.75  20.95  24.85 
1997 01 28.45  19.45  23.95 
1997 02 29.12  20.18  24.65 
1997 03 32.68  22.60  27.64 
1997 04 32.58  23.42  28.00 
1997 05 34.03  24.24  29.13 
1997 06 34.40  24.12  29.26 
1997 07 34.47  23.94  29.20 
1997 08 35.34  23.84  29.59 
1997 09 34.59  23.25  28.92 
1997 10 30.63  20.66  25.64 
1997 11 31.12  20.63  25.87 
1997 12 29.61  19.94  24.77 
1998 01 30.45  20.23  25.34 
1998 02 32.91  22.20  27.55 
1998 03 31.68  21.77  26.72 
1998 04 33.65  22.60  28.12 
1998 05 37.15  25.69  31.42 
1998 06 37.48  27.09  32.28 
1998 07 99.99  25.34 -99.99 
1998 08 99.99  25.32 -99.99 
1998 09 29.30  24.35  26.82 
1998 10 30.42  24.42  27.42 
1998 11 30.90  23.87  27.38 
1998 12 28.84  21.37  25.10 
