Precipitation annual maximum series (inches) Station ID: 40-7811 Station name: ROCK ISLAND 2 NW State: TN Latitude (decimal degrees): 35.8058 Longitude (decimal degrees): 85.6347 Elevation (feet): 870 Duration: 01d 2.58 1905 3.08 1906 6.10 1907 1.52 1908 2.80 1909 2.00 1910 3.66 1911 3.65 1912 5.00 1913 2.06 1914 3.40 1915 3.10 1916 2.80 1917 2.25 1918 2.00 1919 2.02 1920 2.00 1921 3.10 1922 2.00 1923 2.00 1924 2.25 1925 2.98 1926 3.63 1927 2.80 1928 6.10 1929 3.10 1930 2.31 1931 3.52 1932 2.29 1933 3.85 1934 2.40 1935 5.14 1936 3.01 1937 2.95 1938 2.00 1939 3.32 1940 3.55 1941 2.95 1942 2.83 1943 5.00 1944 2.29 1945 2.80 1946 2.40 1947 4.79 1948 4.10 1949 2.00 1950 3.67 1951 2.70 1952 2.85 1953 3.77 1954 2.78 1955 3.77 1956 2.61 1957 2.95 1958 2.94 1959 1.91 1960 6.17 1961 2.97 1962 5.49 1963 2.78 1964 2.50 1965 1.75 1966 3.20 1967 1.70 1968 4.70 1969 3.20 1970 2.90 1971 3.00 1972 5.40 1973 2.80 1974 5.30 1975 2.40 1976 2.90 1977 2.10 1978 3.60 1979 4.50 1980 1.90 1981 4.30 1982 3.80 1983 4.50 1984 1.80 1985 3.70 1986 2.10 1987 2.50 1988 2.00 1989 6.30 1990 3.80 1991 3.50 1992 2.20 1993 4.00 1994 2.60 1995 4.10 1996 3.80 1997 3.60 1998 Duration: 01h -9/-9/-999 -9.99 08/07/1949 0.83 07/13/1950 1.33 11/15/1951 1.01 06/13/1952 1.31 05/19/1953 1.30 09/30/1954 0.85 06/10/1955 1.37 07/02/1956 0.74 06/09/1957 2.20 06/09/1958 0.98 09/01/1959 0.70 07/11/1960 1.08 08/31/1961 3.35 10/02/1962 1.12 03/11/1963 1.48 09/29/1964 1.24 09/11/1965 1.43 07/03/1966 1.24 06/25/1967 1.42 07/25/1968 1.20 06/22/1969 1.40 08/09/1970 1.50 06/13/1971 0.70 08/12/1972 1.20 05/27/1973 2.60 04/08/1974 0.70 06/19/1975 1.30 09/27/1976 1.40 07/25/1977 1.50 07/09/1978 1.20 07/04/1979 0.80 07/26/1980 1.60 07/27/1981 1.90 08/17/1982 2.30 11/14/1983 1.90 05/07/1984 1.70 06/17/1985 0.80 05/26/1986 2.20 05/21/1987 1.90 08/19/1988 1.10 06/21/1989 1.20 07/11/1990 1.20 05/18/1991 1.30 07/02/1992 1.20 06/30/1993 1.60 04/11/1994 1.00 05/09/1995 1.00 05/28/1996 0.80 03/03/1997 0.80 07/04/1998 1.10 01/22/1999 0.80 -9/-9/-999 -9.99 Duration: 02d 3.24 1905 3.08 1906 7.00 1907 2.07 1908 2.90 1909 2.70 1910 4.20 1911 3.75 1912 6.02 1913 2.86 1914 3.51 1915 3.10 1916 2.80 1917 3.07 1918 3.15 1919 2.48 1920 2.75 1921 3.20 1922 3.06 1923 2.69 1924 3.60 1925 3.96 1926 4.42 1927 4.01 1928 10.31 1929 3.15 1930 2.58 1931 3.95 1932 2.55 1933 4.24 1934 3.31 1935 5.79 1936 3.70 1937 3.15 1938 3.64 1939 3.82 1940 -9.99 1941 -9.99 1942 -9.99 1943 -9.99 1944 -9.99 1945 -9.99 1946 -9.99 1947 -9.99 1948 5.79 1949 3.89 1950 3.93 1951 3.33 1952 3.15 1953 5.27 1954 4.13 1955 5.42 1956 4.80 1957 3.01 1958 3.83 1959 2.44 1960 6.17 1961 3.48 1962 5.59 1963 3.45 1964 3.90 1965 2.16 1966 3.99 1967 2.41 1968 6.60 1969 4.10 1970 3.90 1971 5.40 1972 7.50 1973 4.20 1974 8.10 1975 3.70 1976 4.30 1977 3.80 1978 3.60 1979 4.50 1980 1.90 1981 5.40 1982 3.80 1983 5.80 1984 2.20 1985 4.30 1986 2.70 1987 2.60 1988 3.60 1989 7.00 1990 3.90 1991 3.50 1992 2.70 1993 4.70 1994 4.00 1995 4.50 1996 4.80 1997 3.80 1998 Duration: 02h -9/-9/-999 -9.99 07/09/1949 1.10 07/13/1950 1.49 02/19/1951 1.23 06/13/1952 1.82 05/19/1953 1.83 01/15/1954 1.02 06/10/1955 1.55 07/02/1956 1.41 06/09/1957 2.30 09/20/1958 1.32 12/27/1959 0.89 07/11/1960 1.33 08/31/1961 5.60 10/02/1962 1.82 03/11/1963 2.72 04/07/1964 1.55 09/11/1965 1.55 07/03/1966 1.45 06/25/1967 1.60 07/25/1968 1.20 09/04/1969 2.00 08/09/1970 1.90 12/30/1971 1.20 12/10/1972 2.20 05/27/1973 3.00 01/10/1974 0.90 06/19/1975 1.60 09/27/1976 2.10 07/21/1977 2.50 07/09/1978 1.30 08/22/1979 1.10 07/26/1980 1.70 07/27/1981 1.90 08/17/1982 4.10 11/14/1983 2.60 05/07/1984 2.20 09/26/1985 1.10 05/26/1986 2.80 05/21/1987 2.10 01/19/1988 1.20 06/21/1989 1.30 07/11/1990 1.30 08/09/1991 2.00 07/02/1992 2.20 06/30/1993 2.20 08/05/1994 1.40 08/07/1995 2.00 07/31/1996 1.20 09/24/1997 1.40 06/09/1998 1.60 01/22/1999 1.00 -9/-9/-999 -9.99 Duration: 03h -9/-9/-999 -9.99 10/14/1949 1.38 07/13/1950 1.49 02/19/1951 1.36 06/13/1952 2.69 05/18/1953 2.00 01/15/1954 1.19 03/21/1955 1.82 07/02/1956 1.47 06/09/1957 2.47 09/20/1958 1.36 12/18/1959 1.19 07/10/1960 1.56 08/31/1961 5.88 10/02/1962 2.01 03/11/1963 3.53 07/08/1964 2.16 03/29/1965 1.67 07/03/1966 1.60 06/25/1967 1.78 07/25/1968 1.20 09/04/1969 2.20 08/09/1970 2.20 12/30/1971 1.20 12/10/1972 2.70 05/27/1973 3.40 01/10/1974 1.00 06/19/1975 1.90 09/27/1976 2.20 07/21/1977 2.80 06/07/1978 1.30 09/27/1979 1.30 07/26/1980 1.80 07/27/1981 1.90 08/17/1982 4.20 11/14/1983 2.90 05/07/1984 2.20 09/26/1985 1.30 05/26/1986 3.40 05/21/1987 2.10 01/19/1988 1.40 06/21/1989 1.30 12/22/1990 1.80 08/09/1991 2.20 07/02/1992 2.40 06/30/1993 2.20 11/27/1994 1.60 05/09/1995 2.40 07/31/1996 1.60 09/24/1997 1.80 01/07/1998 1.60 01/22/1999 1.40 -9/-9/-999 -9.99 Duration: 04d 3.78 1905 3.36 1906 7.00 1907 2.22 1908 3.00 1909 2.70 1910 4.28 1911 4.31 1912 6.02 1913 3.31 1914 4.38 1915 3.10 1916 3.05 1917 3.72 1918 3.65 1919 2.78 1920 3.75 1921 4.18 1922 3.06 1923 4.96 1924 5.58 1925 4.06 1926 4.47 1927 4.13 1928 10.31 1929 3.25 1930 3.11 1931 4.37 1932 3.62 1933 4.24 1934 4.82 1935 6.29 1936 4.73 1937 4.25 1938 3.64 1939 3.82 1940 -9.99 1941 -9.99 1942 -9.99 1943 -9.99 1944 -9.99 1945 -9.99 1946 -9.99 1947 4.16 1948 7.25 1949 6.34 1950 5.62 1951 4.99 1952 3.49 1953 5.67 1954 5.38 1955 6.55 1956 7.26 1957 4.16 1958 3.83 1959 2.78 1960 6.34 1961 4.54 1962 5.61 1963 3.52 1964 4.64 1965 3.19 1966 4.03 1967 3.00 1968 8.30 1969 5.70 1970 4.20 1971 6.70 1972 7.80 1973 5.50 1974 8.70 1975 4.10 1976 4.90 1977 3.80 1978 3.60 1979 5.80 1980 3.50 1981 5.40 1982 4.40 1983 6.50 1984 2.20 1985 5.20 1986 3.40 1987 2.90 1988 4.60 1989 9.40 1990 3.90 1991 4.30 1992 3.20 1993 6.40 1994 4.00 1995 4.50 1996 5.30 1997 5.00 1998 Duration: 06h -9/-9/-999 -9.99 01/04/1949 1.71 07/13/1950 1.49 02/19/1951 1.59 06/13/1952 3.20 05/18/1953 2.48 01/20/1954 1.98 05/29/1955 2.05 12/12/1956 2.02 06/09/1957 2.49 09/20/1958 2.40 12/18/1959 1.80 05/07/1960 2.04 08/31/1961 6.21 10/02/1962 2.90 03/11/1963 4.23 04/07/1964 2.45 03/29/1965 2.05 07/03/1966 1.64 06/25/1967 1.82 03/11/1968 1.64 09/04/1969 2.30 08/09/1970 2.40 05/12/1971 1.50 12/09/1972 3.20 05/27/1973 4.20 01/10/1974 1.50 03/12/1975 2.30 09/27/1976 2.20 07/21/1977 2.90 12/08/1978 1.80 09/27/1979 1.90 08/04/1980 2.10 07/27/1981 1.90 08/17/1982 4.20 11/14/1983 3.40 05/07/1984 3.00 09/26/1985 1.60 05/26/1986 3.70 05/21/1987 2.10 01/19/1988 1.70 02/20/1989 1.30 12/22/1990 2.80 08/08/1991 2.70 09/22/1992 2.90 05/03/1993 2.50 04/15/1994 2.00 05/09/1995 2.60 11/30/1996 2.20 09/24/1997 2.80 10/07/1998 2.20 01/22/1999 2.10 -9/-9/-999 -9.99 Duration: 07d 4.69 1905 4.88 1906 7.00 1907 2.87 1908 5.21 1909 4.00 1910 5.20 1911 5.65 1912 7.20 1913 3.85 1914 6.18 1915 4.36 1916 2.91 1917 4.27 1918 3.90 1919 2.96 1920 4.77 1921 4.54 1922 4.60 1923 5.94 1924 5.63 1925 4.93 1926 5.17 1927 4.60 1928 10.69 1929 3.35 1930 4.20 1931 4.44 1932 5.32 1933 7.39 1934 5.75 1935 6.29 1936 5.98 1937 4.68 1938 4.60 1939 4.14 1940 -9.99 1941 -9.99 1942 -9.99 1943 -9.99 1944 -9.99 1945 -9.99 1946 -9.99 1947 4.36 1948 7.27 1949 7.31 1950 5.64 1951 5.62 1952 4.48 1953 8.47 1954 6.18 1955 7.47 1956 8.18 1957 4.47 1958 4.04 1959 3.34 1960 6.41 1961 6.75 1962 8.64 1963 5.56 1964 7.10 1965 3.60 1966 4.19 1967 3.11 1968 9.20 1969 6.60 1970 5.00 1971 7.40 1972 8.70 1973 5.80 1974 9.60 1975 4.40 1976 5.70 1977 4.30 1978 3.80 1979 6.80 1980 3.50 1981 5.60 1982 4.80 1983 9.90 1984 3.60 1985 5.50 1986 3.60 1987 3.00 1988 5.60 1989 10.50 1990 4.40 1991 4.93 1992 3.70 1993 7.50 1994 5.40 1995 5.10 1996 6.40 1997 6.50 1998 Duration: 10d 6.60 1905 5.11 1906 7.00 1907 3.63 1908 5.21 1909 4.57 1910 5.56 1911 7.50 1912 7.70 1913 4.37 1914 6.55 1915 5.56 1916 3.58 1917 5.82 1918 4.60 1919 3.45 1920 4.77 1921 6.51 1922 6.00 1923 6.04 1924 6.33 1925 5.93 1926 5.37 1927 4.85 1928 11.40 1929 4.17 1930 4.54 1931 4.77 1932 5.92 1933 8.22 1934 5.75 1935 6.29 1936 6.11 1937 4.76 1938 6.23 1939 4.32 1940 -9.99 1941 -9.99 1942 -9.99 1943 -9.99 1944 -9.99 1945 -9.99 1946 -9.99 1947 5.98 1948 7.90 1949 8.69 1950 6.33 1951 5.62 1952 5.03 1953 10.78 1954 6.74 1955 8.62 1956 8.66 1957 5.04 1958 5.37 1959 4.19 1960 6.84 1961 7.06 1962 8.76 1963 5.56 1964 7.10 1965 4.26 1966 4.78 1967 4.26 1968 9.80 1969 6.90 1970 5.10 1971 8.40 1972 9.30 1973 6.80 1974 9.60 1975 4.90 1976 6.70 1977 4.40 1978 5.10 1979 7.10 1980 4.00 1981 6.60 1982 5.50 1983 10.90 1984 3.60 1985 6.80 1986 4.40 1987 3.80 1988 6.20 1989 10.90 1990 6.40 1991 5.57 1992 3.90 1993 7.90 1994 6.40 1995 5.20 1996 6.60 1997 6.70 1998 Duration: 12h -9/-9/-999 -9.99 01/04/1949 2.87 01/30/1950 1.79 09/22/1951 2.00 06/12/1952 3.34 05/18/1953 2.66 12/28/1954 2.86 03/21/1955 2.37 12/12/1956 2.91 06/09/1957 2.50 09/20/1958 2.86 12/18/1959 2.35 05/07/1960 2.29 08/31/1961 6.29 10/02/1962 2.93 03/11/1963 4.61 08/16/1964 2.76 03/25/1965 2.25 07/03/1966 1.74 03/06/1967 2.60 03/11/1968 2.35 12/29/1969 4.10 08/09/1970 3.20 05/12/1971 2.30 12/09/1972 4.40 05/27/1973 5.30 01/10/1974 2.30 11/11/1975 3.40 03/29/1976 2.30 07/21/1977 3.20 12/08/1978 2.10 09/27/1979 2.80 03/20/1980 2.90 07/27/1981 1.90 08/17/1982 4.20 11/14/1983 3.50 05/07/1984 3.20 06/17/1985 1.80 05/26/1986 3.70 11/09/1987 2.40 11/04/1988 2.10 10/01/1989 1.80 12/22/1990 4.00 08/08/1991 2.70 09/22/1992 3.50 05/03/1993 2.60 02/10/1994 3.20 05/09/1995 2.60 11/30/1996 3.70 09/24/1997 3.20 01/07/1998 3.40 01/22/1999 2.70 -9/-9/-999 -9.99 Duration: 20d 8.52 1905 7.32 1906 9.34 1907 4.31 1908 7.42 1909 7.60 1910 8.24 1911 9.80 1912 10.61 1913 6.38 1914 9.59 1915 8.73 1916 5.22 1917 7.53 1918 8.20 1919 5.31 1920 6.53 1921 9.73 1922 6.80 1923 8.14 1924 9.03 1925 1.97 1926 6.77 1927 6.99 1928 13.61 1929 5.75 1930 7.82 1931 6.94 1932 7.82 1933 8.82 1934 6.56 1935 8.84 1936 10.67 1937 6.58 1938 9.77 1939 8.48 1940 -9.99 1941 -9.99 1942 -9.99 1943 -9.99 1944 -9.99 1945 -9.99 1946 -9.99 1947 8.02 1948 10.97 1949 11.56 1950 10.01 1951 8.08 1952 7.89 1953 12.45 1954 8.86 1955 12.15 1956 11.24 1957 7.37 1958 6.98 1959 6.06 1960 8.17 1961 8.62 1962 9.85 1963 6.39 1964 9.68 1965 6.08 1966 7.46 1967 5.82 1968 10.10 1969 8.20 1970 6.30 1971 9.90 1972 11.30 1973 11.70 1974 14.40 1975 6.90 1976 7.80 1977 6.10 1978 6.20 1979 10.00 1980 4.20 1981 7.40 1982 9.20 1983 12.70 1984 4.70 1985 8.70 1986 5.50 1987 5.50 1988 8.90 1989 12.30 1990 7.10 1991 7.70 1992 6.07 1993 13.40 1994 7.90 1995 7.20 1996 8.50 1997 9.00 1998 Duration: 24h -9/-9/-999 -9.99 01/04/1949 3.38 01/29/1950 3.29 01/31/1951 3.34 06/12/1952 3.37 05/18/1953 2.85 12/28/1954 4.05 03/20/1955 3.89 12/11/1956 3.66 11/17/1957 2.98 09/20/1958 2.86 12/18/1959 3.30 05/06/1960 2.34 08/31/1961 6.29 10/02/1962 3.13 03/11/1963 5.51 09/28/1964 3.30 03/25/1965 3.18 07/03/1966 1.75 03/05/1967 3.88 03/11/1968 2.39 12/29/1969 6.30 06/20/1970 3.30 05/12/1971 3.00 12/09/1972 5.00 05/27/1973 5.40 01/10/1974 3.50 03/12/1975 5.70 03/29/1976 3.20 04/03/1977 4.10 06/07/1978 3.30 09/27/1979 3.60 03/20/1980 4.50 07/27/1981 1.90 08/16/1982 4.70 04/05/1983 3.80 05/07/1984 4.70 06/17/1985 1.80 05/26/1986 4.00 12/24/1987 2.70 01/19/1988 2.50 01/11/1989 2.70 12/21/1990 6.50 08/09/1991 3.80 09/22/1992 3.50 05/03/1993 2.70 03/27/1994 4.00 10/04/1995 2.70 11/30/1996 4.50 09/24/1997 4.20 01/06/1998 3.80 01/22/1999 2.80 -9/-9/-999 -9.99 Duration: 30d 10.38 1905 9.10 1906 10.09 1907 6.16 1908 9.21 1909 10.08 1910 9.23 1911 12.01 1912 13.22 1913 7.18 1914 11.86 1915 11.61 1916 6.14 1917 8.20 1918 7.62 1919 -9.99 1920 7.93 1921 10.33 1922 10.84 1923 6.32 1924 11.38 1925 2.57 1926 8.21 1927 8.46 1928 16.48 1929 7.98 1930 10.95 1931 8.84 1932 9.59 1933 14.96 1934 8.25 1935 10.99 1936 15.52 1937 8.34 1938 11.92 1939 9.96 1940 -9.99 1941 -9.99 1942 -9.99 1943 -9.99 1944 -9.99 1945 -9.99 1946 -9.99 1947 11.32 1948 13.92 1949 15.72 1950 11.91 1951 10.09 1952 8.95 1953 12.90 1954 11.30 1955 13.42 1956 12.94 1957 8.54 1958 8.86 1959 7.95 1960 10.04 1961 9.99 1962 11.01 1963 7.24 1964 10.52 1965 7.37 1966 8.62 1967 7.46 1968 11.20 1969 10.60 1970 9.50 1971 11.40 1972 12.10 1973 13.50 1974 15.70 1975 10.20 1976 11.80 1977 7.80 1978 8.40 1979 10.30 1980 5.10 1981 7.90 1982 10.20 1983 13.20 1984 5.40 1985 10.10 1986 5.80 1987 8.50 1988 10.90 1989 15.30 1990 9.30 1991 9.83 1992 8.80 1993 16.00 1994 10.70 1995 9.10 1996 10.20 1997 9.80 1998 Duration: 45d 11.99 1905 12.52 1906 12.89 1907 7.68 1908 11.97 1909 13.84 1910 11.67 1911 18.71 1912 15.92 1913 10.38 1914 14.22 1915 13.62 1916 10.96 1917 9.94 1918 10.72 1919 -9.99 1920 9.75 1921 14.06 1922 12.76 1923 9.44 1924 14.58 1925 -9.99 1926 10.33 1927 12.29 1928 19.78 1929 10.67 1930 12.30 1931 9.99 1932 10.58 1933 15.91 1934 11.10 1935 12.04 1936 19.29 1937 11.19 1938 15.62 1939 12.63 1940 -9.99 1941 -9.99 1942 -9.99 1943 -9.99 1944 -9.99 1945 -9.99 1946 -9.99 1947 18.00 1948 10.24 1949 20.64 1950 15.16 1951 12.24 1952 12.25 1953 15.85 1954 14.82 1955 15.77 1956 15.26 1957 10.27 1958 11.66 1959 10.71 1960 12.39 1961 15.54 1962 12.44 1963 10.07 1964 11.64 1965 8.91 1966 11.55 1967 8.99 1968 12.40 1969 11.50 1970 12.80 1971 13.50 1972 16.80 1973 18.00 1974 17.40 1975 11.70 1976 12.00 1977 9.80 1978 11.40 1979 12.30 1980 5.10 1981 11.90 1982 12.70 1983 16.70 1984 7.30 1985 12.90 1986 7.30 1987 10.00 1988 12.20 1989 16.50 1990 11.10 1991 11.80 1992 10.57 1993 19.20 1994 12.90 1995 10.90 1996 13.10 1997 11.60 1998 Duration: 48h -9/-9/-999 -9.99 01/03/1949 4.98 01/29/1950 3.80 01/30/1951 3.68 06/11/1952 3.68 05/18/1953 2.85 01/20/1954 4.92 03/20/1955 3.95 12/11/1956 5.35 11/17/1957 4.65 09/20/1958 2.86 12/17/1959 3.49 05/06/1960 2.48 08/31/1961 6.41 04/10/1962 3.62 03/11/1963 5.59 09/28/1964 3.52 03/24/1965 4.64 07/03/1966 2.18 03/05/1967 4.03 03/10/1968 2.48 12/28/1969 7.60 08/08/1970 4.10 05/11/1971 4.20 12/08/1972 6.20 05/26/1973 7.50 01/08/1974 4.30 03/11/1975 8.10 03/29/1976 3.80 04/02/1977 4.90 06/07/1978 3.80 09/27/1979 3.60 03/20/1980 4.50 07/27/1981 1.90 08/16/1982 5.40 04/05/1983 3.80 05/06/1984 6.10 11/27/1985 2.20 05/26/1986 5.00 12/24/1987 3.00 11/04/1988 2.70 01/11/1989 3.80 12/21/1990 7.50 08/08/1991 3.90 09/22/1992 3.50 05/03/1993 2.70 02/09/1994 5.10 05/09/1995 4.00 11/30/1996 4.50 09/23/1997 5.30 01/06/1998 4.00 07/10/1999 3.00 -9/-9/-999 -9.99 Duration: 60d 15.97 1905 15.88 1906 14.20 1907 9.79 1908 14.11 1909 18.00 1910 13.73 1911 22.16 1912 18.52 1913 12.46 1914 18.27 1915 10.77 1916 9.18 1917 11.34 1918 13.28 1919 11.71 1920 11.89 1921 18.68 1922 14.78 1923 10.63 1924 15.98 1925 -9.99 1926 13.32 1927 14.54 1928 22.05 1929 13.14 1930 13.83 1931 11.03 1932 12.65 1933 17.10 1934 13.24 1935 13.08 1936 21.60 1937 13.12 1938 18.25 1939 16.32 1940 -9.99 1941 -9.99 1942 -9.99 1943 -9.99 1944 -9.99 1945 -9.99 1946 -9.99 1947 11.01 1948 21.87 1949 23.53 1950 18.96 1951 15.29 1952 15.11 1953 17.82 1954 17.90 1955 17.53 1956 20.48 1957 11.93 1958 13.21 1959 11.76 1960 14.79 1961 18.68 1962 13.68 1963 11.69 1964 14.15 1965 11.40 1966 15.08 1967 10.59 1968 15.80 1969 14.70 1970 15.10 1971 17.70 1972 21.10 1973 20.80 1974 21.30 1975 13.00 1976 15.70 1977 14.60 1978 13.30 1979 13.40 1980 7.10 1981 14.40 1982 14.20 1983 19.00 1984 9.30 1985 17.20 1986 8.10 1987 10.80 1988 15.20 1989 17.90 1990 13.50 1991 13.30 1992 12.60 1993 23.50 1994 15.10 1995 13.00 1996 16.01 1997 13.80 1998