Precipitation annual maximum series (inches) Station ID: 11-8179 Station name: SPRINGFIELD WSO AP State: IL Latitude (decimal degrees): 39.8447 Longitude (decimal degrees): 89.6839 Elevation (feet): 594 Duration: 01d 1.49 1901 2.86 1902 1.70 1903 2.16 1904 1.84 1905 1.92 1906 2.33 1907 1.43 1908 2.36 1909 1.87 1910 2.26 1911 2.97 1912 2.15 1913 1.35 1914 3.65 1915 2.18 1916 5.15 1917 2.26 1918 2.23 1919 3.41 1920 2.84 1921 2.23 1922 2.43 1923 2.08 1924 2.15 1925 5.44 1926 1.83 1927 2.32 1928 1.68 1929 2.14 1930 1.97 1931 2.06 1932 3.27 1933 2.72 1934 2.39 1935 2.67 1936 2.53 1937 2.14 1938 2.89 1939 1.42 1940 4.74 1941 2.31 1942 2.48 1943 3.35 1944 2.78 1945 2.85 1946 2.20 1947 2.25 1948 2.40 1949 3.48 1950 3.43 1951 2.14 1952 1.83 1953 1.46 1954 3.44 1955 2.61 1956 1.77 1957 4.48 1958 5.12 1959 2.34 1960 2.25 1961 3.03 1962 2.59 1963 2.54 1964 3.87 1965 1.80 1966 2.25 1967 1.97 1968 3.22 1969 3.58 1970 2.62 1971 1.92 1972 3.24 1973 2.49 1974 2.48 1975 1.89 1976 1.83 1977 1.42 1978 4.45 1979 2.74 1980 4.40 1981 4.70 1982 1.99 1983 2.27 1984 2.46 1985 4.23 1986 2.96 1987 2.18 1988 2.92 1989 4.02 1990 3.24 1991 1.62 1992 3.47 1993 2.95 1994 1.69 1995 3.54 1996 1.66 1997 3.09 1998 2.94 1999 2.54 2000 Duration: 01h 08/17/1948 0.92 06/14/1949 0.80 07/03/1950 1.08 04/29/1951 2.10 07/02/1952 0.83 06/25/1953 1.59 06/08/1954 1.08 07/14/1955 3.12 07/31/1956 1.14 06/10/1957 1.18 06/10/1958 1.40 09/26/1959 1.31 06/11/1960 1.90 04/24/1961 1.28 07/13/1962 0.93 07/06/1963 1.26 11/15/1964 0.78 06/01/1965 1.36 08/15/1966 0.95 08/08/1967 1.26 09/17/1968 0.76 10/10/1969 0.92 09/25/1970 1.29 07/08/1971 0.75 08/12/1972 1.26 06/18/1973 1.30 08/10/1974 1.25 05/26/1975 1.35 06/24/1976 0.71 09/30/1977 1.57 07/01/1978 1.32 04/11/1979 1.50 06/01/1980 1.05 07/27/1981 1.67 12/02/1982 1.12 05/13/1983 0.71 06/13/1984 0.97 06/11/1985 1.07 09/20/1986 2.48 07/04/1987 1.43 07/25/1988 0.83 04/27/1989 1.38 05/15/1990 2.48 07/11/1991 2.00 07/25/1992 0.95 07/01/1993 1.63 06/08/1994 1.20 05/16/1995 1.07 05/08/1996 1.14 08/17/1997 0.74 07/07/1998 1.47 08/23/1999 1.10 07/11/2000 0.77 Duration: 02d 2.28 1901 4.03 1902 2.34 1903 2.36 1904 2.25 1905 2.54 1906 2.61 1907 1.95 1908 3.32 1909 2.90 1910 2.70 1911 2.97 1912 3.17 1913 1.88 1914 5.35 1915 2.19 1916 6.38 1917 2.29 1918 3.08 1919 3.91 1920 3.48 1921 2.63 1922 2.69 1923 3.18 1924 2.30 1925 5.51 1926 3.30 1927 2.32 1928 1.82 1929 2.25 1930 2.70 1931 2.25 1932 3.79 1933 3.02 1934 2.50 1935 3.19 1936 3.85 1937 2.46 1938 4.13 1939 1.42 1940 5.65 1941 2.83 1942 3.15 1943 3.77 1944 3.79 1945 3.45 1946 2.62 1947 3.64 1948 2.76 1949 3.67 1950 5.65 1951 2.22 1952 1.98 1953 1.72 1954 3.83 1955 4.79 1956 2.28 1957 4.81 1958 5.23 1959 2.66 1960 2.56 1961 4.16 1962 2.69 1963 4.40 1964 3.95 1965 1.99 1966 2.37 1967 3.35 1968 3.24 1969 3.96 1970 3.05 1971 2.84 1972 3.51 1973 3.75 1974 2.78 1975 2.44 1976 2.66 1977 1.87 1978 4.45 1979 2.79 1980 4.66 1981 6.39 1982 2.25 1983 2.54 1984 2.51 1985 4.45 1986 3.26 1987 2.18 1988 3.27 1989 4.24 1990 3.36 1991 1.80 1992 3.92 1993 3.86 1994 2.57 1995 3.92 1996 1.75 1997 3.09 1998 2.95 1999 2.54 2000 Duration: 02h 07/25/1948 1.32 06/14/1949 1.04 07/03/1950 1.47 04/29/1951 2.31 07/02/1952 1.60 06/25/1953 1.71 06/08/1954 1.27 07/14/1955 3.29 07/31/1956 1.35 07/13/1957 1.51 06/10/1958 2.68 09/26/1959 2.16 06/11/1960 1.90 04/24/1961 1.80 10/01/1962 1.14 07/06/1963 1.71 11/15/1964 1.44 06/01/1965 1.99 10/14/1966 1.30 12/21/1967 1.91 06/14/1968 0.85 10/10/1969 1.40 09/25/1970 1.38 07/10/1971 1.19 08/12/1972 1.26 10/03/1973 2.17 05/21/1974 1.42 06/25/1975 1.52 03/26/1976 0.90 09/30/1977 1.58 07/01/1978 1.42 04/11/1979 1.78 06/01/1980 1.84 07/27/1981 2.91 12/02/1982 1.62 04/29/1983 0.95 11/01/1984 1.48 06/11/1985 1.45 09/20/1986 3.43 07/04/1987 2.63 07/25/1988 1.55 04/27/1989 2.19 05/15/1990 2.60 07/11/1991 2.05 07/25/1992 0.97 07/01/1993 2.58 06/08/1994 1.65 05/16/1995 1.26 05/08/1996 2.02 08/17/1997 1.16 07/07/1998 2.15 08/12/1999 1.36 06/20/2000 1.03 Duration: 03h 07/25/1948 1.38 06/14/1949 1.28 07/03/1950 1.63 06/27/1951 2.75 07/02/1952 2.02 06/25/1953 1.78 06/08/1954 1.28 07/14/1955 3.40 07/31/1956 1.71 07/13/1957 1.51 06/10/1958 3.37 09/26/1959 2.46 06/11/1960 1.90 04/24/1961 1.91 07/13/1962 1.43 07/06/1963 2.00 11/15/1964 1.64 06/01/1965 2.62 10/14/1966 1.59 12/21/1967 2.06 06/14/1968 1.11 10/10/1969 1.40 09/25/1970 1.40 07/10/1971 1.24 03/12/1972 1.38 10/03/1973 2.37 08/09/1974 1.60 06/25/1975 1.67 03/26/1976 1.23 09/30/1977 1.58 07/01/1978 1.51 04/11/1979 2.08 06/01/1980 2.44 08/02/1981 3.55 12/02/1982 2.10 04/29/1983 1.00 11/01/1984 1.74 06/11/1985 1.82 09/20/1986 3.65 07/04/1987 2.79 07/25/1988 1.55 09/01/1989 2.78 05/15/1990 2.86 07/11/1991 2.06 07/30/1992 1.35 06/04/1993 3.09 06/08/1994 2.40 05/16/1995 1.43 05/08/1996 2.10 08/17/1997 1.33 08/18/1998 3.08 08/12/1999 1.64 06/20/2000 1.17 Duration: 04d 2.49 1901 4.81 1902 2.46 1903 2.99 1904 2.73 1905 2.54 1906 3.84 1907 2.73 1908 3.45 1909 3.13 1910 3.72 1911 3.08 1912 3.98 1913 1.88 1914 6.66 1915 2.19 1916 6.41 1917 3.09 1918 3.82 1919 3.91 1920 3.48 1921 2.63 1922 2.86 1923 3.63 1924 3.52 1925 5.54 1926 5.34 1927 3.94 1928 2.26 1929 2.60 1930 3.28 1931 2.25 1932 4.04 1933 3.82 1934 3.64 1935 4.28 1936 3.85 1937 3.00 1938 4.16 1939 1.50 1940 7.32 1941 3.95 1942 5.97 1943 4.13 1944 3.98 1945 3.81 1946 2.62 1947 3.79 1948 2.77 1949 4.23 1950 6.41 1951 2.22 1952 1.98 1953 2.17 1954 4.74 1955 5.02 1956 3.97 1957 6.05 1958 5.61 1959 4.22 1960 4.05 1961 4.27 1962 4.11 1963 5.27 1964 3.95 1965 2.87 1966 2.37 1967 4.55 1968 4.90 1969 4.00 1970 3.94 1971 3.09 1972 4.21 1973 3.75 1974 2.79 1975 2.68 1976 3.81 1977 2.14 1978 4.91 1979 3.02 1980 5.75 1981 6.95 1982 3.03 1983 2.68 1984 2.97 1985 4.92 1986 3.38 1987 2.69 1988 3.69 1989 5.35 1990 3.80 1991 2.21 1992 4.81 1993 4.66 1994 3.28 1995 4.47 1996 2.74 1997 3.09 1998 2.95 1999 3.43 2000 Duration: 06h 07/25/1948 1.51 06/14/1949 1.36 07/03/1950 3.10 06/27/1951 2.89 07/02/1952 2.07 06/25/1953 1.84 06/08/1954 1.28 07/14/1955 3.43 07/31/1956 3.05 07/13/1957 1.66 06/10/1958 4.05 09/26/1959 3.22 06/23/1960 2.27 04/24/1961 2.14 10/01/1962 1.64 07/06/1963 2.38 11/15/1964 1.69 06/01/1965 3.27 10/14/1966 1.66 12/20/1967 2.10 06/14/1968 1.98 10/10/1969 2.00 04/30/1970 1.56 07/10/1971 2.14 03/12/1972 2.01 10/02/1973 3.20 08/09/1974 1.82 08/25/1975 1.92 02/16/1976 1.77 06/10/1977 1.83 07/01/1978 1.78 04/11/1979 2.44 06/01/1980 2.57 08/02/1981 4.40 12/02/1982 3.95 04/29/1983 1.18 11/01/1984 2.04 06/11/1985 2.30 09/20/1986 4.08 07/04/1987 2.95 12/22/1988 1.79 09/01/1989 2.92 06/20/1990 3.27 07/11/1991 2.12 07/30/1992 1.58 06/04/1993 3.18 06/08/1994 2.66 03/07/1995 1.60 05/08/1996 2.23 08/17/1997 1.51 08/18/1998 3.09 08/12/1999 2.57 06/20/2000 1.48 Duration: 07d 3.06 1901 4.94 1902 3.08 1903 3.01 1904 2.78 1905 3.00 1906 5.13 1907 2.93 1908 4.77 1909 3.28 1910 5.62 1911 3.37 1912 5.12 1913 2.52 1914 6.88 1915 2.65 1916 7.48 1917 3.85 1918 3.91 1919 5.40 1920 3.84 1921 3.57 1922 4.26 1923 3.72 1924 3.72 1925 10.83 1926 6.31 1927 3.94 1928 2.89 1929 2.60 1930 3.31 1931 3.06 1932 4.57 1933 5.39 1934 3.66 1935 4.33 1936 4.67 1937 5.26 1938 4.16 1939 1.76 1940 8.71 1941 4.74 1942 6.61 1943 4.60 1944 4.46 1945 3.94 1946 3.01 1947 6.55 1948 3.40 1949 4.23 1950 7.16 1951 3.47 1952 1.98 1953 2.39 1954 5.00 1955 5.02 1956 4.38 1957 6.43 1958 5.68 1959 4.22 1960 4.36 1961 4.67 1962 4.37 1963 5.65 1964 4.80 1965 3.48 1966 2.90 1967 4.73 1968 4.94 1969 4.61 1970 4.33 1971 3.10 1972 4.69 1973 3.76 1974 3.35 1975 3.02 1976 4.42 1977 3.44 1978 4.91 1979 3.17 1980 8.83 1981 6.99 1982 3.51 1983 4.13 1984 3.89 1985 6.48 1986 4.21 1987 3.19 1988 4.91 1989 6.23 1990 3.80 1991 3.59 1992 5.04 1993 5.05 1994 3.82 1995 6.44 1996 2.93 1997 3.55 1998 3.21 1999 5.32 2000 Duration: 10d 3.20 1901 5.17 1902 3.94 1903 3.37 1904 3.54 1905 3.59 1906 5.14 1907 3.54 1908 6.01 1909 3.30 1910 6.67 1911 3.69 1912 5.12 1913 3.02 1914 8.11 1915 3.16 1916 8.25 1917 4.00 1918 4.08 1919 5.52 1920 3.91 1921 4.22 1922 4.57 1923 3.80 1924 3.77 1925 11.28 1926 6.64 1927 4.43 1928 3.20 1929 2.62 1930 4.10 1931 3.78 1932 4.73 1933 5.80 1934 4.06 1935 4.36 1936 4.67 1937 5.56 1938 4.17 1939 2.19 1940 9.30 1941 5.56 1942 7.38 1943 4.97 1944 4.89 1945 4.93 1946 3.44 1947 6.74 1948 3.82 1949 4.23 1950 7.26 1951 3.47 1952 2.13 1953 3.19 1954 6.98 1955 5.60 1956 5.25 1957 6.45 1958 8.20 1959 4.87 1960 4.91 1961 4.99 1962 5.17 1963 6.98 1964 5.85 1965 3.77 1966 2.94 1967 4.91 1968 5.28 1969 4.99 1970 4.56 1971 3.87 1972 4.70 1973 4.86 1974 3.68 1975 3.09 1976 4.42 1977 4.37 1978 5.22 1979 3.71 1980 10.18 1981 7.88 1982 3.51 1983 4.67 1984 4.19 1985 7.17 1986 4.82 1987 3.20 1988 4.99 1989 6.78 1990 4.04 1991 4.09 1992 5.48 1993 5.08 1994 5.21 1995 7.04 1996 3.17 1997 4.50 1998 3.21 1999 5.32 2000 Duration: 12h 07/25/1948 1.51 12/21/1949 1.88 07/03/1950 3.40 06/27/1951 4.60 07/02/1952 2.14 06/25/1953 1.86 06/08/1954 1.28 07/14/1955 3.43 07/31/1956 4.79 07/13/1957 1.79 06/10/1958 4.48 09/26/1959 3.54 06/23/1960 2.29 04/24/1961 2.29 03/20/1962 1.90 07/06/1963 2.59 11/15/1964 1.96 06/01/1965 3.79 10/14/1966 1.66 12/20/1967 2.28 06/14/1968 2.51 04/18/1969 2.52 04/18/1970 2.47 07/10/1971 2.26 03/12/1972 2.79 10/02/1973 3.40 08/28/1974 2.49 01/09/1975 2.51 02/16/1976 1.89 09/30/1977 2.37 07/01/1978 1.87 04/11/1979 3.57 05/31/1980 2.59 08/02/1981 4.42 12/02/1982 4.69 10/21/1983 1.56 10/07/1984 2.18 06/11/1985 2.45 09/19/1986 4.39 07/04/1987 2.96 12/22/1988 2.18 09/01/1989 2.92 06/20/1990 4.02 10/04/1991 2.92 07/30/1992 1.62 06/04/1993 3.19 06/08/1994 2.80 03/06/1995 2.28 05/08/1996 3.19 08/17/1997 1.56 08/18/1998 3.09 08/12/1999 2.57 06/20/2000 2.38 Duration: 20d 3.85 1901 7.77 1902 5.67 1903 5.20 1904 4.49 1905 5.03 1906 7.03 1907 6.21 1908 8.29 1909 4.52 1910 8.86 1911 5.63 1912 7.75 1913 3.96 1914 8.98 1915 4.34 1916 9.65 1917 5.85 1918 5.71 1919 6.55 1920 5.31 1921 6.20 1922 5.23 1923 4.64 1924 4.41 1925 13.28 1926 7.43 1927 4.54 1928 5.06 1929 3.81 1930 5.07 1931 5.57 1932 6.74 1933 7.47 1934 5.96 1935 5.76 1936 6.49 1937 6.58 1938 5.34 1939 3.05 1940 11.27 1941 6.61 1942 10.60 1943 7.75 1944 7.79 1945 6.63 1946 5.54 1947 7.41 1948 5.78 1949 7.11 1950 8.48 1951 5.07 1952 3.58 1953 4.60 1954 7.49 1955 6.50 1956 5.77 1957 7.76 1958 10.71 1959 8.17 1960 7.57 1961 5.91 1962 5.60 1963 8.13 1964 6.26 1965 5.70 1966 5.55 1967 5.48 1968 5.80 1969 8.04 1970 5.56 1971 4.02 1972 6.26 1973 6.29 1974 4.79 1975 5.70 1976 6.13 1977 4.98 1978 6.79 1979 5.24 1980 12.28 1981 9.29 1982 5.08 1983 6.02 1984 6.25 1985 9.55 1986 6.39 1987 4.26 1988 7.48 1989 8.28 1990 5.10 1991 5.38 1992 6.86 1993 6.83 1994 7.38 1995 7.77 1996 3.82 1997 7.06 1998 4.80 1999 7.07 2000 Duration: 24h 07/25/1948 1.51 12/20/1949 2.41 07/02/1950 3.54 06/27/1951 4.73 07/02/1952 2.22 06/25/1953 1.98 08/18/1954 1.51 07/14/1955 3.44 07/31/1956 4.79 06/10/1957 2.28 06/09/1958 4.73 09/26/1959 5.12 03/29/1960 2.66 04/24/1961 2.29 09/30/1962 3.03 07/05/1963 2.68 04/18/1964 2.78 06/01/1965 3.95 04/19/1966 1.91 12/20/1967 2.37 06/14/1968 2.63 04/17/1969 3.23 04/29/1970 3.90 07/10/1971 2.62 03/12/1972 2.84 10/02/1973 3.51 08/09/1974 2.65 01/09/1975 2.78 03/03/1976 1.91 09/30/1977 2.51 07/01/1978 1.87 04/11/1979 4.45 09/15/1980 2.75 07/27/1981 4.43 12/02/1982 6.12 10/21/1983 1.99 10/07/1984 2.27 06/10/1985 2.47 09/19/1986 4.39 07/04/1987 2.98 12/22/1988 2.18 08/31/1989 3.22 06/19/1990 4.03 10/03/1991 3.24 07/25/1992 1.80 06/04/1993 3.47 04/11/1994 3.53 03/06/1995 2.32 05/07/1996 3.24 08/17/1997 1.65 08/18/1998 3.09 08/12/1999 2.94 06/20/2000 2.54 Duration: 30d 5.67 1901 10.10 1902 6.17 1903 6.28 1904 5.02 1905 5.67 1906 10.28 1907 8.47 1908 8.79 1909 5.87 1910 11.73 1911 7.12 1912 8.26 1913 4.78 1914 10.21 1915 5.61 1916 11.77 1917 7.37 1918 6.88 1919 10.14 1920 6.50 1921 8.48 1922 6.70 1923 7.41 1924 6.08 1925 18.31 1926 9.49 1927 6.29 1928 6.58 1929 4.08 1930 6.06 1931 7.15 1932 9.27 1933 8.44 1934 7.91 1935 6.79 1936 7.30 1937 9.41 1938 6.05 1939 4.23 1940 13.41 1941 8.20 1942 12.90 1943 9.13 1944 8.49 1945 7.94 1946 7.39 1947 8.43 1948 7.18 1949 8.32 1950 9.40 1951 6.68 1952 4.52 1953 5.14 1954 7.63 1955 9.31 1956 8.87 1957 8.85 1958 10.77 1959 9.44 1960 8.75 1961 6.43 1962 6.98 1963 10.44 1964 8.98 1965 6.34 1966 6.17 1967 7.87 1968 8.40 1969 9.46 1970 6.46 1971 4.59 1972 7.91 1973 7.68 1974 6.65 1975 6.43 1976 7.29 1977 5.99 1978 7.88 1979 5.76 1980 15.16 1981 10.38 1982 6.05 1983 7.46 1984 8.15 1985 9.93 1986 6.72 1987 4.37 1988 8.06 1989 9.22 1990 6.58 1991 6.96 1992 10.44 1993 8.66 1994 7.75 1995 10.72 1996 6.15 1997 10.43 1998 6.23 1999 8.81 2000 Duration: 45d 6.28 1901 11.56 1902 7.24 1903 9.29 1904 8.39 1905 6.76 1906 13.44 1907 10.16 1908 11.56 1909 6.93 1910 13.39 1911 8.66 1912 8.98 1913 5.31 1914 11.71 1915 6.68 1916 13.53 1917 9.17 1918 8.56 1919 12.90 1920 8.71 1921 11.08 1922 8.97 1923 8.73 1924 7.41 1925 21.02 1926 11.73 1927 9.11 1928 9.43 1929 5.41 1930 7.81 1931 8.38 1932 11.27 1933 10.66 1934 10.28 1935 9.13 1936 9.39 1937 10.64 1938 9.53 1939 5.70 1940 17.31 1941 11.86 1942 13.80 1943 10.60 1944 10.30 1945 8.97 1946 10.39 1947 11.83 1948 7.63 1949 9.61 1950 10.19 1951 8.38 1952 6.08 1953 6.09 1954 9.51 1955 12.18 1956 11.43 1957 11.77 1958 11.62 1959 11.90 1960 10.85 1961 7.35 1962 10.26 1963 12.83 1964 10.27 1965 9.24 1966 7.28 1967 9.05 1968 9.25 1969 10.92 1970 6.76 1971 6.97 1972 10.37 1973 10.35 1974 9.52 1975 8.62 1976 9.82 1977 7.35 1978 9.87 1979 8.72 1980 17.56 1981 12.10 1982 8.81 1983 10.39 1984 10.02 1985 12.04 1986 8.16 1987 6.47 1988 8.44 1989 15.78 1990 9.21 1991 7.81 1992 12.62 1993 11.13 1994 9.55 1995 11.36 1996 7.25 1997 12.13 1998 7.17 1999 10.58 2000 Duration: 48h 07/25/1948 1.51 12/20/1949 2.76 07/01/1950 4.34 06/27/1951 5.65 07/02/1952 2.22 06/25/1953 1.98 08/18/1954 1.72 10/04/1955 4.15 07/31/1956 4.79 07/13/1957 2.79 06/09/1958 4.81 09/25/1959 5.23 03/29/1960 2.66 07/21/1961 2.87 09/30/1962 4.26 07/04/1963 3.86 04/18/1964 4.72 06/01/1965 3.95 04/18/1966 2.24 12/20/1967 2.37 05/22/1968 3.36 10/10/1969 4.31 04/29/1970 3.96 07/08/1971 3.94 03/12/1972 2.84 10/02/1973 3.56 08/09/1974 3.75 01/09/1975 2.78 03/02/1976 2.60 05/04/1977 3.67 07/01/1978 1.87 04/11/1979 4.45 09/15/1980 2.80 07/26/1981 4.76 12/02/1982 6.39 04/29/1983 2.73 04/20/1984 2.56 06/10/1985 2.52 09/19/1986 4.45 07/04/1987 3.26 12/22/1988 2.21 08/31/1989 3.27 05/15/1990 4.24 10/02/1991 3.56 07/25/1992 1.80 06/30/1993 3.92 04/10/1994 4.16 05/16/1995 3.17 05/06/1996 3.47 11/28/1997 2.28 08/18/1998 3.09 08/11/1999 2.95 06/20/2000 2.54 Duration: 60d 7.29 1901 11.99 1902 9.76 1903 10.06 1904 9.32 1905 10.45 1906 14.05 1907 11.82 1908 13.63 1909 8.97 1910 15.03 1911 11.40 1912 9.60 1913 6.34 1914 14.39 1915 8.20 1916 15.79 1917 10.93 1918 9.91 1919 15.25 1920 11.10 1921 12.49 1922 11.01 1923 9.79 1924 9.44 1925 23.61 1926 14.17 1927 10.00 1928 11.25 1929 6.72 1930 9.23 1931 9.51 1932 15.05 1933 12.42 1934 13.73 1935 10.03 1936 11.45 1937 12.49 1938 11.02 1939 7.05 1940 20.36 1941 12.50 1942 15.36 1943 12.78 1944 11.82 1945 11.16 1946 12.84 1947 13.04 1948 8.94 1949 10.83 1950 11.29 1951 9.78 1952 7.33 1953 7.16 1954 9.57 1955 13.68 1956 14.20 1957 14.75 1958 12.53 1959 14.83 1960 12.81 1961 8.42 1962 12.77 1963 13.92 1964 12.07 1965 9.43 1966 9.03 1967 10.73 1968 10.15 1969 14.20 1970 7.52 1971 8.47 1972 13.58 1973 11.86 1974 10.88 1975 9.30 1976 12.79 1977 9.89 1978 11.02 1979 9.25 1980 21.38 1981 13.85 1982 10.49 1983 11.99 1984 11.53 1985 12.66 1986 9.38 1987 7.86 1988 11.02 1989 18.06 1990 11.54 1991 9.37 1992 16.72 1993 15.45 1994 10.48 1995 11.36 1996 8.17 1997 14.53 1998 8.43 1999 12.24 2000