Precipitation annual maximum series (inches) Station ID: 32-5220 Station name: LISBON State: ND Latitude (decimal degrees): 46.4522 Longitude (decimal degrees): -97.6822 Elevation (feet): 1104 Duration: 1 day 06/04/1904 1.85 05/10/1905 1.90 07/31/1906 1.38 06/15/1907 1.15 10/04/1908 1.06 07/21/1909 2.34 07/14/1910 2.12 05/16/1911 2.33 04/14/1912 1.87 08/18/1913 2.05 06/04/1914 2.85 09/10/1916 2.36 08/15/1917 3.40 10/26/1919 3.00 07/01/1920 2.13 09/19/1921 1.36 05/11/1922 2.47 06/25/1923 2.95 06/28/1924 2.02 03/09/1925 3.00 10/04/1926 1.98 05/09/1927 1.60 07/19/1928 1.25 10/11/1929 1.50 10/19/1932 1.26 06/29/1933 1.18 08/08/1934 1.23 08/20/1935 2.38 09/06/1936 1.29 06/05/1937 1.97 08/19/1938 2.52 06/11/1939 2.58 08/01/1940 1.50 08/10/1941 4.37 08/26/1942 1.72 06/03/1943 2.13 07/11/1944 2.05 07/27/1945 1.32 09/19/1946 1.78 06/11/1947 1.45 06/20/1949 2.00 05/06/1950 1.77 07/03/1951 2.52 11/18/1952 1.20 06/16/1953 1.89 06/14/1954 1.28 07/04/1955 2.72 05/28/1956 1.50 06/14/1957 2.56 06/04/1958 1.51 08/25/1959 3.95 08/18/1960 1.62 10/11/1961 2.97 07/19/1962 2.32 04/03/1963 1.19 08/21/1964 3.16 07/08/1965 1.31 08/01/1966 4.02 07/08/1967 2.58 07/17/1968 2.27 06/25/1969 1.89 05/29/1970 2.46 08/29/1971 2.45 05/13/1972 1.94 09/24/1973 1.90 06/29/1975 4.31 06/15/1976 1.17 11/20/1977 1.60 09/12/1978 6.00 04/12/1979 1.55 06/04/1980 1.25 07/14/1981 2.30 10/09/1982 1.67 07/03/1983 1.87 10/19/1984 1.51 08/29/1985 1.30 06/15/1986 1.97 08/03/1987 1.51 07/13/1988 2.90 07/18/1989 1.97 06/16/1992 1.62 05/24/1993 1.63 07/08/1994 2.00 10/05/1995 1.52 08/05/1996 3.08 07/11/1997 2.28 06/26/1998 3.15 09/01/1999 2.63 07/04/2000 2.24 04/07/2001 1.50 07/07/2002 1.90 06/26/2005 2.02 12/31/2006 0.99 05/05/2007 3.85 08/11/2008 1.71 Duration: 2 days 04/07/1904 2.40 05/10/1905 2.17 05/25/1906 1.88 01/01/1907 1.24 10/04/1908 1.14 07/20/1909 3.30 07/14/1910 2.28 05/15/1911 2.51 04/13/1912 3.34 08/17/1913 2.21 06/04/1914 3.10 09/10/1916 2.54 08/15/1917 3.66 10/25/1919 5.00 07/01/1920 2.29 05/19/1921 1.56 06/15/1922 3.07 06/20/1923 3.19 04/26/1924 2.30 03/09/1925 5.00 10/04/1926 2.13 05/08/1927 2.10 07/01/1928 1.86 10/10/1929 1.65 04/23/1932 1.61 05/22/1933 1.43 08/08/1934 1.32 08/19/1935 2.56 09/06/1936 1.39 06/05/1937 2.82 08/19/1938 2.71 06/10/1939 4.60 08/01/1940 1.62 08/10/1941 4.71 03/25/1942 2.31 06/02/1943 2.35 07/11/1944 2.21 07/27/1945 1.42 04/03/1946 2.05 06/10/1947 2.23 06/20/1949 2.15 05/06/1950 2.17 07/03/1951 3.04 11/17/1952 1.29 06/15/1953 3.64 06/14/1954 1.43 07/04/1955 2.93 05/28/1956 1.62 04/19/1957 2.76 06/03/1958 1.63 08/25/1959 4.25 08/18/1960 1.96 10/11/1961 3.20 07/06/1962 3.34 04/02/1963 1.29 08/20/1964 3.49 04/10/1965 1.73 08/01/1966 4.33 07/08/1967 3.66 07/17/1968 2.44 06/25/1969 2.06 05/29/1970 2.65 09/04/1971 2.64 05/12/1972 2.09 09/23/1973 2.05 06/29/1975 5.51 06/15/1976 1.26 11/19/1977 2.30 09/12/1978 6.46 04/12/1979 1.72 06/04/1980 1.68 07/13/1981 2.48 10/09/1982 2.89 07/03/1983 2.01 10/19/1984 1.66 08/29/1985 1.40 06/15/1986 2.12 05/21/1987 1.76 07/13/1988 3.12 07/18/1989 2.12 06/16/1992 2.74 07/15/1993 1.78 07/07/1994 3.41 07/04/1995 2.62 08/05/1996 3.32 07/11/1997 3.56 06/25/1998 3.41 09/01/1999 4.78 07/03/2000 2.41 04/07/2001 1.73 07/06/2002 2.05 06/12/2005 2.51 12/30/2006 1.66 05/04/2007 4.89 08/11/2008 1.84 Duration: 3 days 04/07/1904 3.15 05/10/1905 2.72 08/22/1906 2.34 09/16/1907 1.68 10/04/1908 1.15 07/20/1909 4.24 07/12/1910 2.42 05/15/1911 2.53 04/13/1912 3.37 08/18/1913 2.66 06/04/1914 3.13 07/07/1916 2.72 08/15/1917 3.70 10/25/1919 7.00 07/01/1920 2.32 05/19/1921 1.58 06/15/1922 3.10 06/23/1923 3.43 04/25/1924 2.95 03/09/1925 5.05 10/02/1926 2.53 05/07/1927 2.64 07/17/1928 1.95 10/09/1929 2.59 04/23/1932 1.63 05/22/1933 1.44 08/08/1934 1.34 08/18/1935 2.89 09/04/1936 1.40 06/05/1937 2.85 08/19/1938 2.74 06/10/1939 4.64 08/01/1940 2.02 08/08/1941 4.75 03/25/1942 2.47 06/01/1943 2.38 07/11/1944 2.23 07/27/1945 1.44 04/03/1946 2.07 06/09/1947 2.56 06/20/1949 2.17 05/05/1950 2.25 07/03/1951 3.07 07/18/1952 1.38 06/14/1953 3.79 06/14/1954 1.44 07/02/1955 2.96 05/28/1956 3.03 04/18/1957 2.78 06/03/1958 1.64 08/23/1959 4.30 08/23/1960 2.05 10/09/1961 3.23 07/06/1962 3.37 04/01/1963 1.31 08/20/1964 3.52 04/10/1965 1.90 08/01/1966 4.37 07/08/1967 3.70 07/15/1968 2.47 06/25/1969 2.11 05/29/1970 2.79 06/22/1971 2.90 05/13/1972 2.46 09/22/1973 2.99 06/19/1975 6.02 06/15/1976 1.37 11/19/1977 2.32 09/12/1978 6.52 04/12/1979 1.74 06/04/1980 1.71 07/12/1981 2.75 10/09/1982 2.98 07/02/1983 2.03 10/14/1984 2.37 05/29/1985 1.43 04/26/1986 2.30 07/18/1987 2.27 09/18/1988 3.15 07/18/1989 2.14 06/16/1992 3.20 11/23/1993 1.95 07/07/1994 3.71 07/03/1995 3.64 08/03/1996 3.35 07/11/1997 3.59 06/24/1998 3.56 09/01/1999 5.13 07/02/2000 2.44 05/06/2001 1.80 07/06/2002 2.07 06/12/2005 2.56 12/29/2006 1.88 05/04/2007 4.94 06/03/2008 2.79 Duration: 4 days 04/07/1904 3.18 05/10/1905 2.75 07/28/1906 2.56 09/16/1907 1.85 05/11/1908 1.45 07/20/1909 4.28 07/11/1910 2.57 09/04/1911 2.64 04/13/1912 3.41 08/17/1913 2.79 06/04/1914 3.35 07/04/1916 3.18 08/15/1917 3.73 10/25/1919 7.07 07/01/1920 2.89 09/16/1921 1.71 06/13/1922 3.87 06/20/1923 3.67 04/24/1924 3.13 03/09/1925 5.10 08/31/1926 3.35 05/07/1927 2.81 07/17/1928 1.97 10/08/1929 2.63 06/11/1932 1.69 06/26/1933 1.88 06/01/1934 1.41 08/17/1935 3.48 09/04/1936 1.42 06/05/1937 2.88 08/19/1938 2.77 06/10/1939 4.69 08/01/1940 2.04 08/08/1941 4.80 03/25/1942 2.49 05/31/1943 2.93 07/11/1944 2.25 07/27/1945 1.45 10/05/1946 2.30 06/09/1947 2.59 06/20/1949 2.76 05/06/1950 3.37 07/03/1951 3.10 07/18/1952 1.39 06/14/1953 3.83 06/11/1954 1.78 07/04/1955 2.99 05/28/1956 3.06 08/30/1957 2.90 06/30/1958 1.98 08/23/1959 4.34 08/23/1960 2.07 10/09/1961 3.26 07/03/1962 4.71 06/06/1963 1.33 08/20/1964 3.56 07/08/1965 2.07 08/01/1966 4.41 07/08/1967 3.73 07/14/1968 2.49 06/23/1969 2.26 05/29/1970 2.82 06/22/1971 2.93 05/12/1972 2.61 09/21/1973 3.02 06/19/1975 6.10 06/15/1976 1.38 11/17/1977 2.60 09/12/1978 6.59 07/23/1979 1.82 06/04/1980 1.83 07/11/1981 2.84 10/07/1982 3.80 07/16/1983 2.38 10/14/1984 2.39 05/13/1985 1.60 04/25/1986 2.43 07/18/1987 2.29 09/16/1988 3.18 07/18/1989 2.16 06/16/1992 3.35 07/13/1993 2.47 07/07/1994 3.75 07/02/1995 4.26 08/03/1996 3.38 07/11/1997 3.63 10/15/1998 3.61 09/01/1999 5.41 07/04/2000 2.50 05/06/2001 1.82 07/07/2002 2.41 06/26/2005 3.20 12/29/2006 1.90 05/04/2007 4.99 06/02/2008 2.97 Duration: 7 days 06/03/1904 3.40 05/04/1905 4.00 05/24/1906 2.80 09/16/1907 2.32 05/11/1908 2.24 07/18/1909 4.84 07/11/1910 2.60 05/10/1911 4.15 06/11/1912 3.68 08/13/1913 3.69 06/04/1914 4.65 07/04/1916 4.12 08/15/1917 3.77 10/25/1919 7.14 07/01/1920 3.10 09/13/1921 2.75 06/10/1922 4.33 06/19/1923 6.77 04/21/1924 3.43 03/09/1925 5.15 08/28/1926 3.46 05/03/1927 2.89 07/01/1928 2.97 10/08/1929 2.66 06/11/1932 2.12 06/23/1933 2.52 06/01/1934 1.55 08/17/1935 3.56 09/04/1936 1.48 05/31/1937 3.09 08/14/1938 2.79 06/10/1939 6.80 07/28/1940 3.24 06/06/1941 5.92 08/26/1942 3.47 05/31/1943 2.96 07/05/1944 3.59 04/10/1945 1.52 10/05/1946 2.52 06/05/1947 3.40 06/20/1949 2.84 05/03/1950 4.01 07/03/1951 3.31 08/04/1952 1.64 06/14/1953 5.38 07/27/1954 2.17 07/04/1955 4.46 05/24/1956 3.63 08/27/1957 3.15 06/30/1958 2.83 08/23/1959 5.11 08/17/1960 2.59 10/09/1961 3.29 07/01/1962 7.44 08/22/1963 2.03 08/20/1964 3.62 04/06/1965 3.08 08/01/1966 4.49 07/08/1967 3.77 07/12/1968 2.52 06/23/1969 2.49 06/15/1970 3.50 08/29/1971 3.78 05/11/1972 2.89 09/21/1973 3.06 06/15/1975 7.42 06/24/1976 1.43 09/18/1977 2.99 09/12/1978 6.77 07/20/1979 1.86 05/29/1980 2.64 07/11/1981 2.89 10/06/1982 5.21 06/29/1983 2.64 10/14/1984 4.03 05/11/1985 2.51 04/14/1986 2.93 07/18/1987 2.36 07/08/1988 3.45 07/12/1989 2.18 06/16/1992 3.50 05/24/1993 2.66 07/04/1994 5.22 07/02/1995 5.92 08/05/1996 3.42 07/07/1997 3.96 10/15/1998 3.65 08/27/1999 6.60 08/29/2000 3.10 06/09/2001 2.52 07/06/2002 2.60 06/07/2005 3.60 04/28/2006 1.92 05/04/2007 5.04 06/05/2008 3.45 Duration: 10 days 06/03/1904 3.53 05/03/1905 4.95 05/17/1906 3.08 09/13/1907 2.67 05/11/1908 2.69 07/12/1909 5.24 07/06/1910 2.94 05/07/1911 4.30 06/11/1912 3.72 08/11/1913 4.71 05/31/1914 4.95 06/29/1916 5.86 08/15/1917 3.81 10/25/1919 7.21 07/01/1920 3.18 09/10/1921 2.98 06/08/1922 4.41 06/19/1923 6.84 04/21/1924 3.46 03/09/1925 5.20 08/12/1926 3.58 05/02/1927 3.18 07/01/1928 3.39 10/08/1929 2.68 06/10/1932 2.26 06/23/1933 2.80 06/01/1934 1.57 08/17/1935 3.63 09/06/1936 1.51 05/30/1937 3.64 08/10/1938 3.74 06/07/1939 6.91 07/27/1940 3.58 06/06/1941 6.15 05/28/1942 3.71 05/25/1943 3.38 07/03/1944 4.28 07/27/1945 1.79 09/10/1946 3.09 06/04/1947 4.52 06/20/1949 3.54 04/30/1950 4.83 07/03/1951 3.44 08/01/1952 1.89 06/14/1953 5.71 06/06/1954 2.57 07/02/1955 5.34 05/24/1956 3.67 06/14/1957 3.90 06/30/1958 3.13 08/23/1959 5.50 08/17/1960 4.06 10/09/1961 3.33 07/01/1962 7.51 08/21/1963 2.11 06/09/1964 4.70 04/03/1965 3.67 08/01/1966 4.75 06/30/1967 3.83 04/19/1968 2.56 06/25/1969 3.30 06/11/1970 3.75 08/29/1971 5.13 05/05/1972 3.30 09/15/1973 3.24 06/13/1975 8.48 06/15/1976 2.32 09/18/1977 3.15 07/23/1979 2.44 06/04/1980 3.50 07/11/1981 2.92 10/01/1982 5.84 06/26/1983 3.64 10/11/1984 4.08 05/11/1985 2.54 04/18/1986 3.21 07/11/1987 2.92 09/12/1988 3.48 05/23/1989 2.29 06/16/1992 3.96 05/22/1993 3.05 07/04/1994 5.39 07/03/1995 6.01 07/27/1996 3.97 07/05/1997 4.00 06/17/1998 5.39 08/27/1999 7.23 08/29/2000 3.20 06/09/2001 3.05 07/04/2002 2.70 06/04/2005 4.61 04/28/2006 2.12 05/04/2007 5.09 06/02/2008 4.82 Duration: 20 days 05/21/1904 4.53 04/28/1905 5.30 07/14/1906 4.52 09/13/1907 3.22 05/11/1908 3.39 05/18/1909 6.87 07/06/1910 3.05 05/16/1911 5.20 05/28/1912 4.17 08/10/1913 4.93 05/31/1914 5.91 06/22/1916 7.59 07/30/1917 4.55 10/25/1919 9.90 07/01/1920 4.32 09/02/1921 3.52 06/08/1922 5.21 06/19/1923 7.71 04/13/1924 4.25 05/23/1925 5.50 08/15/1926 6.84 06/28/1927 4.42 07/01/1928 5.34 09/23/1929 3.62 04/19/1932 3.69 06/23/1933 3.38 08/08/1934 2.45 06/06/1935 4.49 08/21/1936 1.94 05/30/1937 4.41 08/03/1938 4.47 06/10/1939 8.86 07/17/1940 4.25 05/28/1941 6.44 05/17/1942 5.20 05/15/1943 4.56 07/03/1944 5.76 03/31/1945 2.33 09/19/1946 4.29 06/04/1947 5.10 06/20/1949 4.93 04/30/1950 6.59 06/15/1951 4.34 07/20/1952 2.77 06/07/1953 6.18 05/27/1954 3.67 06/23/1955 5.85 05/11/1956 4.18 07/25/1957 5.14 06/16/1958 3.71 08/13/1959 5.66 08/07/1960 4.42 04/24/1961 3.66 07/01/1962 10.16 08/21/1963 2.90 06/06/1964 6.06 04/02/1965 4.23 08/01/1966 7.60 06/22/1967 4.35 06/30/1968 3.65 06/19/1969 4.30 05/29/1970 5.13 08/18/1971 6.27 05/11/1972 5.68 09/22/1973 4.06 06/13/1975 14.12 06/09/1976 2.90 09/18/1977 4.43 07/15/1979 3.12 05/26/1980 5.32 07/14/1981 3.56 10/01/1982 6.04 07/02/1983 4.55 10/06/1984 4.63 05/12/1985 3.65 04/14/1986 5.57 07/18/1987 4.46 07/02/1988 3.84 06/29/1989 2.87 06/16/1992 4.97 06/29/1993 4.52 07/04/1994 6.19 07/02/1995 8.25 07/27/1996 4.06 06/23/1997 4.71 06/09/1998 7.33 08/27/1999 8.20 06/15/2000 5.31 06/05/2001 3.35 07/07/2002 3.57 06/12/2005 6.55 04/28/2006 2.82 04/19/2007 6.53 05/24/2008 5.85 Duration: 30 days 06/03/1904 5.61 04/28/1905 5.98 05/01/1906 5.38 06/10/1907 3.80 05/11/1908 5.46 06/23/1909 8.36 08/30/1910 3.95 05/07/1911 7.20 04/13/1912 6.16 08/13/1913 6.17 05/29/1914 7.36 06/12/1916 8.63 07/22/1917 4.67 10/25/1919 9.90 08/29/1920 4.60 08/21/1921 4.91 06/10/1922 6.93 06/21/1923 8.99 08/19/1924 5.07 05/22/1925 6.32 08/13/1926 7.83 06/20/1927 5.87 06/12/1928 6.24 10/08/1929 3.82 04/11/1932 4.08 06/26/1933 4.13 09/24/1934 2.69 06/12/1935 6.54 04/25/1936 2.38 04/03/1937 5.25 08/10/1938 5.84 06/10/1939 9.26 07/26/1940 5.95 06/06/1941 8.02 05/11/1942 5.79 05/31/1943 6.03 06/18/1944 6.67 03/15/1945 2.89 09/09/1946 5.79 06/04/1947 5.86 06/20/1949 5.94 04/23/1950 7.11 06/11/1951 5.03 07/18/1952 3.27 05/28/1953 7.72 08/18/1954 4.36 07/04/1955 6.79 05/01/1956 5.28 07/17/1957 6.58 06/04/1958 5.64 08/03/1959 6.40 06/07/1960 4.72 09/13/1961 5.55 06/08/1962 10.82 07/31/1963 3.44 06/08/1964 7.71 06/25/1965 5.27 07/24/1966 8.16 06/12/1967 5.19 04/13/1968 4.46 06/21/1969 5.25 05/23/1970 6.96 06/17/1971 6.48 05/01/1972 6.78 08/31/1973 5.41 06/02/1975 16.27 06/15/1976 3.07 09/13/1977 5.30 04/12/1979 3.80 05/29/1980 6.11 07/03/1981 4.47 09/12/1982 7.02 06/21/1983 6.42 09/24/1984 5.19 05/06/1985 4.10 04/14/1986 7.38 07/05/1987 5.46 07/08/1988 4.67 05/24/1989 4.02 05/22/1992 6.35 06/19/1993 5.55 06/22/1994 6.39 07/02/1995 8.53 05/17/1996 4.86 06/15/1997 5.53 06/09/1998 8.59 08/22/1999 8.57 06/12/2000 6.62 05/21/2001 4.30 07/04/2002 4.11 06/03/2005 9.15 04/28/2006 3.44 05/04/2007 7.95 05/29/2008 6.03 Duration: 45 days 06/04/1904 7.69 05/03/1905 9.06 06/18/1906 8.88 05/25/1907 5.21 05/11/1908 7.08 07/08/1909 9.64 06/03/1910 4.89 05/10/1911 7.83 06/11/1912 8.37 05/15/1913 7.15 06/04/1914 8.59 06/29/1916 10.75 08/15/1917 6.07 10/25/1919 9.90 08/11/1920 5.19 08/13/1921 5.89 05/08/1922 8.17 05/19/1923 11.16 08/01/1924 5.90 05/23/1925 7.11 07/29/1926 9.92 06/20/1927 7.05 06/07/1928 8.56 09/21/1929 4.85 05/05/1932 5.49 05/22/1933 4.92 07/10/1934 3.26 06/01/1935 7.02 04/23/1937 7.57 07/27/1938 7.47 06/03/1939 9.95 07/11/1940 7.22 08/03/1941 10.61 04/26/1942 8.19 05/15/1943 7.66 06/03/1944 8.53 03/15/1945 3.57 08/27/1946 6.15 05/22/1947 6.89 06/16/1949 7.15 04/30/1950 7.33 05/25/1951 7.46 06/28/1952 4.87 05/11/1953 9.91 07/27/1954 5.36 06/23/1955 9.17 05/24/1956 6.76 07/25/1957 9.52 05/26/1958 7.39 08/25/1959 7.32 05/24/1960 6.63 08/30/1961 6.98 06/05/1962 13.79 07/16/1963 4.48 06/06/1964 8.72 06/25/1965 5.79 07/09/1966 8.63 05/26/1967 6.03 06/04/1968 6.91 06/19/1969 6.57 05/14/1970 7.53 05/30/1971 7.95 05/02/1972 7.36 08/31/1973 6.82 05/19/1975 17.28 06/09/1976 3.26 08/25/1977 6.83 06/19/1979 4.57 05/26/1980 6.60 05/31/1981 7.10 08/31/1982 7.26 06/10/1983 7.55 09/09/1984 5.95 05/11/1985 5.52 04/03/1986 8.45 06/29/1987 6.41 06/23/1988 5.33 07/18/1989 5.42 05/12/1992 8.22 05/22/1993 7.97 06/09/1994 6.90 06/06/1995 10.17 05/14/1996 6.10 06/15/1997 6.02 09/06/1998 8.97 07/22/1999 10.09 05/28/2000 7.77 05/06/2001 6.10 07/04/2002 5.11 05/25/2005 9.89 08/09/2006 4.56 05/04/2007 10.94 09/01/2008 8.33 Duration: 60 days 05/21/1904 8.88 04/28/1905 10.98 05/01/1906 10.02 05/14/1907 6.37 05/11/1908 7.47 05/23/1909 13.46 07/11/1910 6.19 04/12/1911 9.20 05/27/1912 9.68 06/25/1913 9.81 06/04/1914 11.13 05/13/1916 12.76 07/30/1917 7.22 09/14/1919 10.20 05/19/1920 5.50 07/24/1921 7.94 05/08/1922 10.09 06/20/1923 12.10 08/19/1924 7.35 04/17/1925 8.80 08/08/1926 11.73 05/03/1927 9.63 06/07/1928 9.96 09/02/1929 5.11 04/19/1932 7.65 05/08/1933 6.36 08/08/1934 4.49 04/23/1935 8.19 04/10/1937 8.52 07/19/1938 8.02 05/20/1939 10.71 06/26/1940 8.03 08/04/1941 12.67 04/28/1942 8.97 05/24/1943 9.13 07/03/1944 11.23 04/11/1945 4.33 08/14/1946 7.20 05/15/1947 7.47 05/30/1949 7.76 03/21/1950 8.58 07/03/1951 9.25 06/28/1952 5.67 04/24/1953 12.74 07/22/1954 6.78 05/18/1955 10.72 05/10/1956 7.86 07/17/1957 10.69 05/13/1958 8.12 08/12/1959 8.22 06/27/1960 7.58 08/18/1961 8.35 05/21/1962 16.31 07/07/1963 5.89 06/08/1964 10.29 05/14/1965 7.42 06/25/1966 9.40 05/11/1967 6.37 06/04/1968 7.16 06/01/1969 7.40 05/29/1970 8.71 05/15/1971 9.47 07/03/1972 8.21 07/28/1973 7.33 05/14/1975 17.82 06/15/1976 3.64 08/10/1977 7.82 04/12/1979 5.29 05/26/1980 7.10 05/23/1981 8.41 09/12/1982 7.80 06/03/1983 8.05 04/24/1984 6.36 04/30/1985 5.80 04/03/1986 8.78 06/11/1987 6.78 06/09/1988 5.77 05/20/1989 7.47 05/16/1992 9.66 05/22/1993 10.74 07/04/1994 8.05 05/22/1995 11.01 06/15/1996 8.81 05/17/1997 6.64 05/07/1998 12.66 07/15/1999 11.14 05/20/2000 8.93 04/23/2001 6.71 06/20/2002 5.77 05/08/2005 11.57 07/25/2006 5.35 04/20/2007 12.70 08/27/2008 9.52