Precipitation annual maximum series (inches) Station ID: 31-3630 Station name: GREENSBORO WSO AIRPORT State: NC Latitude (decimal degrees): 36.0975 Longitude (decimal degrees): 79.9436 Elevation (feet): 897 Duration: 01d 1.90 1897 2.52 1898 2.52 1899 1.98 1900 3.98 1901 1.73 1902 2.54 1903 1.69 1904 2.75 1905 2.02 1906 2.02 1907 4.35 1908 3.00 1909 2.60 1910 1.75 1911 3.75 1912 3.03 1913 1.92 1914 3.73 1915 4.42 1916 3.13 1917 4.32 1918 2.40 1919 2.02 1920 2.39 1921 3.21 1922 3.27 1923 2.98 1924 1.76 1925 2.84 1926 3.01 1927 3.66 1928 3.49 1929 2.45 1930 1.85 1931 4.37 1932 1.99 1933 2.46 1934 2.32 1935 4.48 1936 1.82 1937 2.63 1938 2.47 1939 3.52 1940 2.03 1941 2.22 1942 1.86 1943 2.94 1944 3.46 1945 2.51 1946 7.46 1947 2.04 1948 3.98 1949 1.70 1950 2.57 1951 2.63 1952 2.94 1953 6.24 1954 3.10 1955 3.71 1956 2.36 1957 3.06 1958 4.50 1959 2.12 1960 1.71 1961 3.61 1962 2.08 1963 3.90 1964 2.81 1965 1.87 1966 1.96 1967 2.01 1968 4.20 1969 2.61 1970 1.60 1971 3.17 1972 3.02 1973 2.39 1974 3.14 1975 2.74 1976 4.73 1977 3.61 1978 5.11 1979 2.49 1980 3.06 1981 2.40 1982 1.98 1983 2.52 1984 2.07 1985 2.77 1986 3.90 1987 2.34 1988 3.24 1989 4.08 1990 3.60 1991 3.97 1992 2.63 1993 1.53 1994 4.52 1995 3.94 1996 2.32 1997 3.18 1998 2.11 1999 3.78 2000 Duration: 01h 06/15/1948 1.27 08/15/1949 2.06 06/21/1950 1.15 08/14/1951 1.93 07/26/1952 1.23 08/17/1953 1.42 10/15/1954 0.98 08/14/1955 1.00 08/20/1956 1.33 07/17/1957 1.36 07/16/1958 1.20 10/10/1959 1.48 07/11/1960 1.09 06/12/1961 1.58 06/02/1962 1.32 07/23/1963 1.47 08/30/1964 1.82 09/17/1965 1.94 05/29/1966 0.81 08/07/1967 1.03 08/15/1968 0.69 06/15/1969 1.78 08/06/1970 1.80 07/27/1971 1.35 06/21/1972 0.70 07/22/1973 2.57 09/03/1974 1.47 07/24/1975 1.60 10/09/1976 1.03 08/15/1977 1.97 08/25/1978 1.28 09/22/1979 2.40 05/20/1980 0.73 07/24/1981 1.60 05/31/1982 1.65 09/13/1983 1.35 07/28/1984 1.31 05/22/1985 0.80 07/01/1986 0.90 08/07/1987 2.02 07/21/1988 1.54 09/15/1989 1.12 10/12/1990 1.53 04/15/1991 1.65 08/13/1992 1.42 06/12/1993 2.41 08/19/1994 1.20 06/29/1995 1.29 09/04/1996 1.29 04/28/1997 1.14 08/08/1998 1.28 08/14/1999 1.58 09/14/2000 2.13 Duration: 02d -9.99 1897 -9.99 1898 -9.99 1899 -9.99 1900 -9.99 1901 -9.99 1902 3.47 1903 2.01 1904 4.11 1905 2.35 1906 2.21 1907 6.45 1908 3.60 1909 3.45 1910 2.26 1911 5.16 1912 2.98 1913 2.13 1914 3.73 1915 4.47 1916 5.45 1917 4.32 1918 3.20 1919 3.61 1920 2.39 1921 3.21 1922 4.34 1923 3.19 1924 3.04 1925 2.84 1926 3.34 1927 4.90 1928 5.77 1929 2.45 1930 2.17 1931 4.97 1932 2.90 1933 3.13 1934 3.75 1935 4.52 1936 2.48 1937 3.02 1938 3.29 1939 4.15 1940 2.26 1941 2.44 1942 2.50 1943 4.52 1944 5.13 1945 4.13 1946 7.54 1947 2.43 1948 4.55 1949 2.01 1950 3.23 1951 2.72 1952 3.60 1953 6.27 1954 3.30 1955 4.21 1956 3.36 1957 3.65 1958 6.10 1959 2.54 1960 2.92 1961 4.08 1962 2.77 1963 4.34 1964 3.19 1965 2.36 1966 1.96 1967 2.76 1968 4.39 1969 4.47 1970 2.11 1971 5.33 1972 3.09 1973 2.51 1974 3.43 1975 4.29 1976 5.61 1977 4.19 1978 5.77 1979 2.79 1980 3.42 1981 2.40 1982 2.11 1983 3.59 1984 2.45 1985 4.72 1986 5.03 1987 2.49 1988 3.25 1989 5.19 1990 3.67 1991 4.39 1992 2.76 1993 2.18 1994 4.96 1995 5.52 1996 3.25 1997 4.80 1998 2.78 1999 3.79 2000 Duration: 02h 06/15/1948 1.27 08/15/1949 2.60 06/21/1950 1.19 08/14/1951 2.43 07/30/1952 1.68 08/17/1953 1.49 10/15/1954 1.84 08/14/1955 1.58 05/03/1956 1.50 07/17/1957 1.42 07/16/1958 1.40 10/10/1959 2.78 07/11/1960 1.60 06/12/1961 1.69 06/02/1962 1.42 07/23/1963 1.59 08/30/1964 2.00 08/21/1965 2.51 06/18/1966 1.13 08/07/1967 1.56 08/04/1968 0.87 06/15/1969 2.13 08/06/1970 1.87 07/27/1971 1.35 06/21/1972 1.18 07/22/1973 2.97 09/03/1974 1.55 07/24/1975 3.01 10/09/1976 1.64 08/15/1977 2.23 07/16/1978 1.91 09/22/1979 3.35 05/20/1980 0.98 09/06/1981 2.13 05/31/1982 1.95 09/13/1983 1.49 07/27/1984 2.05 05/22/1985 1.07 08/11/1986 1.70 08/07/1987 3.12 07/21/1988 1.79 05/01/1989 1.48 10/12/1990 1.62 04/15/1991 2.74 11/02/1992 1.80 06/12/1993 2.54 08/01/1994 1.52 08/27/1995 1.70 08/07/1996 1.72 04/28/1997 1.77 07/25/1998 1.72 06/30/1999 1.83 09/14/2000 3.56 Duration: 03h 06/15/1948 1.27 08/15/1949 2.81 06/21/1950 1.26 08/14/1951 2.47 07/30/1952 1.72 06/07/1953 1.60 10/15/1954 2.63 08/14/1955 2.07 05/03/1956 1.55 04/05/1957 1.57 07/16/1958 1.62 10/10/1959 3.03 07/11/1960 1.89 06/12/1961 1.69 06/02/1962 1.43 07/23/1963 1.66 08/30/1964 2.00 08/21/1965 2.51 06/18/1966 1.14 08/07/1967 1.96 08/15/1968 0.91 06/15/1969 2.48 10/15/1970 1.94 05/12/1971 1.38 06/21/1972 1.46 07/22/1973 2.98 09/03/1974 1.72 07/24/1975 3.13 10/09/1976 2.19 08/15/1977 2.48 07/10/1978 2.37 09/22/1979 4.03 06/25/1980 1.14 09/06/1981 2.20 05/31/1982 1.95 09/13/1983 1.49 07/27/1984 2.41 05/22/1985 1.25 08/11/1986 1.88 08/07/1987 3.21 07/21/1988 1.95 05/01/1989 1.67 10/10/1990 2.31 04/15/1991 2.74 11/02/1992 2.02 06/12/1993 2.63 08/01/1994 1.52 08/27/1995 2.04 09/03/1996 2.13 04/28/1997 2.01 07/25/1998 2.03 06/30/1999 1.84 09/14/2000 3.71 Duration: 04d 5.07 1903 2.90 1904 5.26 1905 3.13 1906 2.98 1907 6.80 1908 4.70 1909 4.39 1910 3.03 1911 5.32 1912 4.60 1913 2.87 1914 5.16 1915 4.84 1916 5.50 1917 4.93 1918 6.31 1919 4.20 1920 2.70 1921 4.90 1922 4.43 1923 3.44 1924 3.24 1925 3.43 1926 4.32 1927 5.01 1928 5.83 1929 2.80 1930 3.06 1931 5.71 1932 3.39 1933 3.55 1934 3.83 1935 4.52 1936 3.38 1937 3.07 1938 4.27 1939 4.91 1940 2.33 1941 2.92 1942 2.50 1943 4.57 1944 7.00 1945 4.16 1946 10.44 1947 2.79 1948 5.98 1949 2.88 1950 3.98 1951 4.38 1952 4.82 1953 6.27 1954 6.05 1955 5.85 1956 3.84 1957 3.87 1958 7.10 1959 2.61 1960 3.63 1961 4.08 1962 2.77 1963 4.73 1964 3.40 1965 2.43 1966 2.81 1967 2.90 1968 4.52 1969 4.57 1970 3.36 1971 5.57 1972 3.09 1973 4.78 1974 5.99 1975 4.54 1976 5.67 1977 5.22 1978 5.86 1979 2.87 1980 4.32 1981 3.82 1982 2.83 1983 5.84 1984 3.57 1985 4.75 1986 6.21 1987 2.72 1988 3.71 1989 7.29 1990 3.67 1991 4.39 1992 3.03 1993 3.30 1994 5.29 1995 9.43 1996 3.25 1997 5.40 1998 2.97 1999 3.79 2000 Duration: 06h 11/19/1948 1.37 08/15/1949 4.13 05/11/1950 1.64 08/14/1951 2.48 08/31/1952 2.39 06/07/1953 2.09 10/15/1954 4.48 08/14/1955 2.68 09/26/1956 1.80 04/05/1957 1.75 07/16/1958 1.62 10/09/1959 4.53 07/11/1960 1.98 06/12/1961 1.69 06/12/1962 1.87 07/23/1963 1.74 10/04/1964 2.74 08/21/1965 2.51 02/28/1966 1.42 08/07/1967 1.96 05/26/1968 1.17 06/15/1969 3.94 10/15/1970 2.44 05/12/1971 1.59 06/21/1972 1.91 07/22/1973 3.02 09/03/1974 1.82 07/24/1975 3.14 10/08/1976 2.85 09/08/1977 3.32 07/16/1978 3.37 09/22/1979 4.70 06/25/1980 1.47 09/06/1981 2.37 05/31/1982 1.95 09/13/1983 1.50 07/27/1984 2.68 07/25/1985 1.35 08/12/1986 2.13 08/07/1987 3.27 07/21/1988 2.28 05/01/1989 2.28 10/10/1990 3.66 04/15/1991 2.74 11/02/1992 2.28 06/12/1993 2.68 08/01/1994 1.52 08/27/1995 3.11 09/05/1996 2.44 04/28/1997 2.25 08/07/1998 2.48 06/30/1999 1.86 09/14/2000 3.72 Duration: 07d 5.07 1903 3.33 1904 6.44 1905 4.12 1906 3.83 1907 8.34 1908 5.55 1909 5.03 1910 3.94 1911 6.39 1912 5.60 1913 3.53 1914 5.27 1915 5.01 1916 6.05 1917 4.31 1918 7.80 1919 4.20 1920 3.48 1921 5.70 1922 4.71 1923 3.72 1924 3.76 1925 3.56 1926 5.62 1927 5.01 1928 6.02 1929 3.30 1930 3.69 1931 5.87 1932 5.02 1933 4.70 1934 4.01 1935 4.76 1936 4.13 1937 3.90 1938 5.75 1939 5.42 1940 2.45 1941 3.91 1942 2.50 1943 4.91 1944 8.13 1945 4.20 1946 11.48 1947 4.15 1948 7.17 1949 2.99 1950 3.98 1951 5.08 1952 5.41 1953 6.32 1954 6.15 1955 5.86 1956 4.66 1957 4.53 1958 8.82 1959 3.55 1960 4.51 1961 4.17 1962 3.47 1963 5.17 1964 5.67 1965 3.08 1966 3.25 1967 4.23 1968 7.18 1969 6.56 1970 3.52 1971 5.57 1972 3.50 1973 6.76 1974 7.29 1975 4.54 1976 5.67 1977 7.18 1978 5.98 1979 3.02 1980 5.39 1981 4.93 1982 3.16 1983 6.19 1984 3.76 1985 4.91 1986 6.39 1987 3.06 1988 5.06 1989 7.29 1990 4.90 1991 4.68 1992 3.07 1993 4.45 1994 5.69 1995 9.56 1996 4.78 1997 5.40 1998 3.45 1999 5.03 2000 Duration: 10d 6.89 1903 3.65 1904 7.28 1905 6.00 1906 3.86 1907 8.59 1908 5.95 1909 6.10 1910 4.44 1911 6.58 1912 6.04 1913 4.21 1914 6.28 1915 6.08 1916 6.87 1917 5.09 1918 8.45 1919 4.31 1920 3.48 1921 6.13 1922 5.06 1923 6.33 1924 5.06 1925 3.56 1926 7.19 1927 5.07 1928 6.46 1929 3.39 1930 5.23 1931 5.92 1932 5.08 1933 5.36 1934 4.15 1935 6.00 1936 4.87 1937 4.11 1938 5.79 1939 5.45 1940 2.69 1941 4.50 1942 3.94 1943 5.16 1944 8.67 1945 4.80 1946 11.80 1947 5.82 1948 8.42 1949 3.04 1950 5.52 1951 5.17 1952 5.56 1953 6.32 1954 6.18 1955 6.67 1956 5.11 1957 4.53 1958 8.96 1959 4.14 1960 4.99 1961 4.92 1962 4.14 1963 5.30 1964 6.12 1965 3.61 1966 4.23 1967 4.26 1968 7.39 1969 7.22 1970 3.98 1971 6.09 1972 3.98 1973 7.22 1974 8.63 1975 5.75 1976 6.35 1977 7.18 1978 8.21 1979 3.23 1980 6.19 1981 6.87 1982 4.22 1983 6.45 1984 3.88 1985 6.31 1986 6.74 1987 3.28 1988 5.96 1989 8.17 1990 5.33 1991 4.91 1992 3.87 1993 4.55 1994 6.17 1995 10.10 1996 5.54 1997 5.55 1998 3.45 1999 6.51 2000 Duration: 12h 11/28/1948 1.78 08/15/1949 4.33 05/11/1950 1.71 06/17/1951 2.86 08/31/1952 2.62 06/07/1953 2.89 10/15/1954 5.99 08/14/1955 2.75 09/26/1956 2.90 11/25/1957 2.08 12/27/1958 2.36 10/09/1959 5.21 08/22/1960 2.12 05/10/1961 1.77 11/09/1962 2.71 09/28/1963 2.70 10/04/1964 3.75 08/21/1965 2.73 09/19/1966 1.66 08/07/1967 1.96 10/18/1968 1.73 06/15/1969 4.14 08/09/1970 3.13 05/12/1971 1.75 06/20/1972 3.41 07/22/1973 3.02 09/03/1974 2.35 07/24/1975 3.14 10/08/1976 4.00 09/07/1977 4.78 07/15/1978 3.88 09/21/1979 5.64 06/25/1980 2.23 09/06/1981 2.91 06/10/1982 1.97 04/02/1983 1.82 07/27/1984 3.46 05/15/1985 1.80 08/11/1986 2.83 08/07/1987 3.27 07/21/1988 2.28 05/01/1989 3.15 10/10/1990 4.45 03/29/1991 3.04 04/20/1992 2.54 06/12/1993 2.75 08/01/1994 1.53 08/27/1995 4.25 09/05/1996 2.73 04/28/1997 2.25 08/07/1998 2.51 09/04/1999 1.98 09/14/2000 3.76 Duration: 20d 9.27 1903 6.18 1904 10.36 1905 8.56 1906 5.21 1907 10.59 1908 8.68 1909 6.96 1910 5.32 1911 6.82 1912 6.91 1913 6.21 1914 7.34 1915 10.17 1916 8.10 1917 7.98 1918 10.13 1919 6.25 1920 4.26 1921 8.42 1922 7.15 1923 7.91 1924 7.03 1925 6.51 1926 9.04 1927 9.38 1928 7.79 1929 4.49 1930 7.64 1931 6.51 1932 7.76 1933 7.39 1934 5.66 1935 7.77 1936 7.60 1937 5.01 1938 11.17 1939 7.57 1940 4.71 1941 5.46 1942 6.20 1943 6.96 1944 10.99 1945 5.28 1946 13.23 1947 7.04 1948 10.33 1949 4.96 1950 7.39 1951 6.07 1952 7.41 1953 7.36 1954 6.94 1955 6.75 1956 6.59 1957 5.49 1958 12.71 1959 7.11 1960 6.30 1961 7.73 1962 6.12 1963 8.28 1964 6.84 1965 5.79 1966 5.56 1967 4.59 1968 8.46 1969 8.60 1970 5.13 1971 6.92 1972 6.45 1973 7.65 1974 12.34 1975 7.95 1976 6.35 1977 8.59 1978 10.52 1979 4.30 1980 7.45 1981 11.39 1982 6.24 1983 11.69 1984 5.19 1985 7.86 1986 7.61 1987 5.42 1988 8.67 1989 12.22 1990 7.65 1991 6.37 1992 5.89 1993 5.84 1994 8.42 1995 11.42 1996 6.81 1997 8.42 1998 5.98 1999 9.18 2000 Duration: 24h 08/03/1948 2.21 08/15/1949 4.47 05/11/1950 1.72 06/17/1951 3.23 08/30/1952 2.64 06/06/1953 3.49 10/15/1954 6.24 08/14/1955 3.30 09/26/1956 3.84 01/30/1957 2.38 12/27/1958 3.59 10/09/1959 5.97 08/22/1960 2.17 05/10/1961 2.05 09/16/1962 3.62 09/28/1963 2.77 10/04/1964 4.06 06/11/1965 3.16 09/19/1966 1.88 08/07/1967 1.96 03/11/1968 2.26 06/15/1969 4.20 08/09/1970 4.06 05/12/1971 1.92 06/20/1972 4.91 05/27/1973 3.06 09/06/1974 2.42 07/24/1975 3.15 10/08/1976 4.27 09/07/1977 5.52 07/15/1978 4.19 09/21/1979 5.65 06/24/1980 2.50 09/06/1981 3.17 06/10/1982 2.40 11/15/1983 1.98 07/27/1984 3.59 07/24/1985 2.45 08/11/1986 4.30 04/15/1987 4.42 11/27/1988 2.48 05/01/1989 3.25 10/10/1990 5.12 03/29/1991 3.62 04/20/1992 4.04 06/12/1993 2.76 07/31/1994 1.81 08/26/1995 4.60 09/03/1996 4.08 04/27/1997 2.29 08/07/1998 3.23 06/30/1999 2.48 09/14/2000 3.79 Duration: 30d 10.68 1903 8.41 1904 11.73 1905 10.00 1906 6.16 1907 11.71 1908 11.36 1909 8.93 1910 7.12 1911 9.86 1912 10.13 1913 9.07 1914 11.07 1915 13.78 1916 9.68 1917 8.53 1918 11.38 1919 8.94 1920 5.05 1921 9.68 1922 8.40 1923 8.76 1924 8.64 1925 8.40 1926 10.54 1927 11.07 1928 9.03 1929 6.20 1930 10.54 1931 8.37 1932 9.83 1933 8.83 1934 7.41 1935 9.63 1936 9.04 1937 6.87 1938 13.04 1939 8.99 1940 6.26 1941 7.67 1942 6.82 1943 8.16 1944 11.38 1945 6.22 1946 13.76 1947 7.87 1948 11.71 1949 6.37 1950 8.93 1951 8.66 1952 8.08 1953 7.77 1954 8.43 1955 7.69 1956 7.32 1957 7.06 1958 13.09 1959 8.17 1960 8.63 1961 8.58 1962 7.36 1963 8.30 1964 10.53 1965 6.69 1966 7.24 1967 5.80 1968 9.98 1969 9.21 1970 6.81 1971 7.71 1972 7.48 1973 8.28 1974 12.43 1975 9.57 1976 9.48 1977 13.40 1978 13.17 1979 6.34 1980 8.99 1981 14.19 1982 7.70 1983 14.23 1984 8.26 1985 9.47 1986 9.05 1987 6.50 1988 9.37 1989 12.59 1990 9.48 1991 7.47 1992 8.32 1993 7.89 1994 9.53 1995 12.74 1996 8.23 1997 9.23 1998 8.68 1999 12.40 2000 Duration: 45d 12.47 1903 10.58 1904 17.89 1905 15.01 1906 8.42 1907 13.96 1908 13.58 1909 9.99 1910 8.37 1911 12.09 1912 13.61 1913 12.54 1914 13.71 1915 17.35 1916 12.77 1917 11.78 1918 13.38 1919 10.85 1920 7.86 1921 12.97 1922 11.51 1923 11.59 1924 10.33 1925 9.06 1926 13.63 1927 16.20 1928 10.97 1929 8.88 1930 14.30 1931 11.61 1932 11.57 1933 10.79 1934 9.60 1935 11.65 1936 11.44 1937 9.57 1938 16.23 1939 12.08 1940 8.53 1941 8.73 1942 8.91 1943 10.67 1944 12.71 1945 7.40 1946 15.43 1947 10.05 1948 14.84 1949 8.47 1950 10.07 1951 11.61 1952 9.74 1953 10.42 1954 9.49 1955 10.94 1956 9.11 1957 10.37 1958 15.43 1959 10.94 1960 9.48 1961 10.41 1962 8.68 1963 9.61 1964 13.38 1965 9.45 1966 10.24 1967 8.04 1968 10.92 1969 10.76 1970 9.21 1971 10.99 1972 10.01 1973 14.09 1974 13.82 1975 10.38 1976 10.37 1977 16.15 1978 15.49 1979 7.62 1980 12.28 1981 15.29 1982 9.88 1983 18.24 1984 9.51 1985 10.63 1986 10.33 1987 8.19 1988 10.95 1989 14.23 1990 11.73 1991 8.71 1992 13.06 1993 10.60 1994 11.04 1995 16.43 1996 9.22 1997 10.52 1998 11.89 1999 12.94 2000 Duration: 48h 11/26/1948 2.50 08/15/1949 5.91 05/11/1950 2.10 06/16/1951 3.39 07/30/1952 2.72 06/06/1953 3.97 10/14/1954 6.27 08/14/1955 3.30 09/25/1956 4.47 01/30/1957 3.42 12/27/1958 3.87 10/09/1959 6.52 08/21/1960 2.59 12/10/1961 3.12 09/16/1962 4.08 09/28/1963 2.77 10/04/1964 4.34 08/19/1965 3.27 09/19/1966 2.37 08/05/1967 2.14 10/17/1968 2.77 06/13/1969 4.47 08/09/1970 4.48 10/22/1971 2.19 06/19/1972 5.43 05/27/1973 3.09 08/04/1974 3.72 03/12/1975 3.70 10/07/1976 4.54 09/07/1977 5.67 07/14/1978 4.32 09/21/1979 5.78 06/24/1980 2.87 09/05/1981 3.86 06/08/1982 2.41 10/22/1983 2.24 07/26/1984 5.33 01/02/1985 2.53 08/11/1986 4.73 09/06/1987 5.49 07/21/1988 2.72 09/30/1989 3.53 10/10/1990 5.37 03/29/1991 3.67 04/20/1992 4.39 06/11/1993 2.83 03/27/1994 2.44 08/25/1995 5.14 09/02/1996 5.64 04/27/1997 3.15 08/07/1998 4.86 09/04/1999 2.87 09/14/2000 3.79 Duration: 60d 15.32 1903 12.91 1904 19.40 1905 18.41 1906 10.45 1907 14.94 1908 16.45 1909 13.32 1910 11.68 1911 13.46 1912 15.79 1913 15.21 1914 15.34 1915 20.39 1916 17.64 1917 14.06 1918 15.11 1919 13.85 1920 8.98 1921 15.80 1922 13.12 1923 13.86 1924 12.01 1925 10.87 1926 15.76 1927 17.82 1928 13.81 1929 10.24 1930 15.73 1931 13.68 1932 12.93 1933 12.42 1934 11.87 1935 12.76 1936 13.15 1937 10.95 1938 17.81 1939 14.57 1940 10.21 1941 12.32 1942 10.70 1943 12.77 1944 13.18 1945 8.66 1946 18.45 1947 11.73 1948 18.94 1949 10.44 1950 11.39 1951 14.05 1952 11.67 1953 13.17 1954 11.76 1955 12.08 1956 10.47 1957 11.22 1958 16.24 1959 12.34 1960 11.38 1961 11.90 1962 10.22 1963 13.36 1964 17.12 1965 11.19 1966 11.07 1967 8.68 1968 12.87 1969 12.21 1970 9.72 1971 12.61 1972 13.04 1973 14.79 1974 15.71 1975 11.16 1976 12.16 1977 19.06 1978 16.40 1979 8.47 1980 14.89 1981 16.83 1982 11.75 1983 19.83 1984 10.55 1985 11.65 1986 14.15 1987 9.76 1988 13.91 1989 16.17 1990 14.41 1991 10.33 1992 15.31 1993 11.37 1994 12.03 1995 18.79 1996 11.92 1997 12.18 1998 14.19 1999 14.27 2000