Precipitation annual maximum series (inches) Station ID: 25-6720 Station name: PIERCE State: NE Latitude (decimal degrees): 42.1958 Longitude (decimal degrees): -97.5206 Elevation (feet): 1591 Duration: 15 minutes 04/30/1972 0.80 06/12/1973 0.70 05/28/1974 0.80 06/23/1976 0.40 07/20/1977 0.90 08/14/1978 0.60 10/18/1979 0.80 05/26/1980 0.70 06/13/1981 0.60 05/14/1982 0.60 09/05/1983 1.00 06/09/1984 0.80 04/30/1985 0.40 06/29/1986 0.80 06/17/1987 0.40 07/15/1988 0.60 08/26/1989 0.40 06/21/1991 0.90 07/12/1992 0.70 08/16/1993 0.90 09/03/1994 0.90 10/16/1996 0.80 07/07/1997 0.70 05/21/1998 1.30 06/25/2000 0.60 08/29/2002 0.80 07/05/2003 0.70 04/20/2005 1.10 05/23/2006 1.00 07/18/2007 0.60 08/11/2008 0.80 08/15/2009 0.90 Duration: 30 minutes 04/30/1972 1.10 06/12/1973 1.30 05/28/1974 1.10 06/23/1976 0.70 07/20/1977 1.20 07/20/1978 1.00 10/18/1979 1.00 05/26/1980 1.20 06/13/1981 1.00 08/04/1982 1.00 09/05/1983 1.10 04/25/1984 1.10 08/16/1985 0.70 06/29/1986 1.00 08/17/1987 0.60 07/15/1988 1.00 08/26/1989 0.50 04/23/1990 0.50 06/14/1991 1.20 07/12/1992 0.80 08/16/1993 1.00 09/03/1994 1.30 10/16/1996 1.40 07/12/1997 0.90 05/21/1998 1.70 07/11/2000 0.90 08/29/2002 1.10 07/05/2003 1.20 04/20/2005 1.50 05/23/2006 1.20 07/18/2007 1.10 08/11/2008 1.20 08/15/2009 1.50 Duration: 45 minutes 07/25/1972 1.60 06/12/1973 1.60 05/28/1974 1.20 06/23/1976 0.90 07/20/1977 1.70 07/20/1978 1.30 10/18/1979 1.20 05/26/1980 1.40 06/13/1981 1.20 08/04/1982 1.30 09/05/1983 1.20 04/25/1984 1.20 08/16/1985 0.80 06/29/1986 1.10 08/19/1987 0.70 07/15/1988 1.10 06/14/1991 1.70 07/12/1992 1.20 08/16/1993 1.10 09/03/1994 1.70 10/16/1996 1.70 07/12/1997 1.10 05/21/1998 2.00 07/11/2000 1.10 08/29/2002 1.40 07/05/2003 1.40 06/21/2005 1.80 05/23/2006 1.20 07/18/2007 1.20 08/11/2008 1.30 08/15/2009 1.80 07/11/2010 2.20 Duration: 1 hour 06/12/1949 1.00 07/15/1950 1.23 07/02/1951 1.20 06/20/1954 1.13 07/13/1955 0.82 07/11/1956 1.01 06/22/1957 0.95 07/02/1958 1.25 08/21/1959 0.66 06/09/1960 1.21 05/13/1961 1.08 06/16/1962 0.76 06/26/1963 0.63 06/22/1964 1.22 05/15/1965 1.00 08/20/1966 0.71 06/13/1967 0.75 07/29/1968 1.10 06/25/1969 1.40 08/02/1970 1.00 06/04/1971 1.60 07/25/1972 1.74 06/12/1973 1.56 05/28/1974 1.10 06/23/1976 1.01 07/20/1977 1.83 07/20/1978 1.28 10/18/1979 1.10 05/26/1980 1.47 06/13/1981 1.19 08/04/1982 1.28 09/05/1983 1.10 06/09/1984 1.19 06/26/1985 0.83 06/29/1986 1.10 08/19/1987 0.64 07/15/1988 1.19 07/10/1990 0.64 06/14/1991 1.83 07/12/1992 1.19 08/16/1993 1.01 06/18/1994 1.93 08/04/1996 1.74 07/07/1997 1.19 05/21/1998 1.93 07/11/2000 1.01 08/29/2002 1.47 07/05/2003 1.56 06/21/2005 1.74 08/18/2006 1.10 07/18/2007 1.28 08/11/2008 1.19 08/15/2009 1.65 Duration: 2 hours 05/20/1949 1.09 07/15/1950 1.60 08/20/1951 1.50 06/20/1954 1.22 06/23/1955 1.22 07/11/1956 1.65 10/15/1957 1.42 07/02/1958 1.52 05/20/1959 1.01 08/23/1960 1.75 07/10/1961 1.34 06/16/1962 0.92 06/15/1963 0.70 06/22/1964 2.13 07/19/1965 1.35 08/20/1966 0.96 06/13/1967 1.14 07/29/1968 1.90 06/25/1969 2.20 06/10/1970 1.20 06/04/1971 2.10 07/25/1972 3.08 06/12/1973 1.73 05/27/1974 1.35 06/23/1976 1.44 07/20/1977 2.21 07/20/1978 1.54 10/18/1979 1.25 05/26/1980 2.88 06/13/1981 1.54 08/04/1982 1.44 06/26/1983 1.35 04/25/1984 1.25 08/16/1985 0.96 06/29/1986 1.15 08/17/1987 0.77 07/15/1988 1.35 07/15/1989 0.77 04/23/1990 0.87 06/14/1991 2.12 07/12/1992 1.54 08/16/1993 1.06 06/18/1994 2.60 08/04/1996 3.37 08/14/1997 1.25 05/21/1998 2.02 07/11/2000 1.06 08/29/2002 1.92 07/05/2003 1.83 06/21/2005 2.21 05/23/2006 1.35 07/18/2007 1.73 08/11/2008 1.54 08/15/2009 1.92 Duration: 3 hours 05/20/1949 1.36 07/15/1950 1.67 08/20/1951 2.00 06/20/1954 1.48 06/23/1955 1.47 07/11/1956 1.68 10/15/1957 1.83 07/29/1958 1.66 05/20/1959 1.32 08/23/1960 1.78 06/14/1961 1.45 05/17/1962 1.28 06/15/1963 1.02 06/21/1964 2.25 07/19/1965 1.49 08/20/1966 0.98 06/06/1967 1.35 07/29/1968 2.00 06/25/1969 2.90 06/10/1970 1.22 06/04/1971 2.50 07/25/1972 3.20 06/12/1973 1.80 05/27/1974 1.50 06/23/1976 1.60 07/20/1977 2.30 07/20/1978 1.70 10/18/1979 1.30 05/26/1980 3.20 06/13/1981 1.60 08/04/1982 1.60 06/26/1983 1.40 04/25/1984 1.30 08/16/1985 1.10 06/29/1986 1.20 08/19/1987 0.90 07/15/1988 1.90 07/15/1989 1.00 04/23/1990 1.10 06/14/1991 2.20 07/12/1992 1.60 07/03/1993 1.20 06/18/1994 2.70 08/04/1996 4.40 08/14/1997 1.30 05/21/1998 2.10 07/11/2000 1.10 08/29/2002 2.20 07/05/2003 1.90 06/21/2005 2.50 09/10/2006 1.60 07/18/2007 1.80 08/11/2008 1.60 08/15/2009 2.40 Duration: 6 hours 05/20/1949 1.75 07/14/1950 1.78 08/19/1951 2.18 05/30/1954 2.73 06/23/1955 1.81 06/25/1956 1.70 10/15/1957 1.85 07/29/1958 3.20 05/20/1959 1.52 08/23/1960 1.80 06/14/1961 1.90 09/08/1962 1.45 06/15/1963 1.21 06/21/1964 2.73 07/19/1965 1.70 08/12/1966 1.17 06/14/1967 1.43 07/29/1968 2.02 06/24/1969 3.40 09/20/1970 1.40 06/04/1971 2.52 07/25/1972 3.30 06/11/1973 2.20 05/27/1974 1.51 06/23/1976 2.00 07/20/1977 2.70 07/20/1978 1.90 05/09/1979 1.60 05/26/1980 3.40 06/02/1981 2.20 08/04/1982 1.70 06/26/1983 1.41 04/25/1984 1.31 04/22/1985 1.30 06/29/1986 1.21 03/22/1987 1.50 07/15/1988 2.00 07/15/1989 1.10 04/23/1990 1.11 06/14/1991 2.22 07/12/1992 1.62 07/03/1993 1.50 06/18/1994 2.90 08/04/1996 4.70 08/14/1997 1.40 05/21/1998 2.12 05/26/2000 1.40 08/29/2002 2.50 07/05/2003 1.92 06/21/2005 2.90 09/10/2006 2.40 05/29/2007 2.10 09/21/2008 2.40 08/15/2009 2.80 Duration: 12 hours 08/18/1949 2.48 07/18/1950 2.23 08/19/1951 2.20 05/09/1953 3.68 05/30/1954 4.10 06/23/1955 2.24 06/25/1956 1.72 10/15/1957 1.87 07/29/1958 4.06 05/05/1959 1.86 05/05/1960 2.33 06/14/1961 2.74 09/08/1962 1.46 06/15/1963 1.22 06/21/1964 2.76 05/24/1965 1.85 08/12/1966 1.63 06/13/1967 1.88 07/29/1968 2.04 06/24/1969 3.50 10/07/1970 1.50 06/04/1971 2.70 04/30/1972 3.50 06/11/1973 2.50 05/27/1974 1.53 06/23/1976 2.10 07/20/1977 2.80 08/14/1978 2.70 05/09/1979 2.20 05/26/1980 3.50 06/13/1981 3.00 05/25/1982 1.72 06/26/1983 1.60 05/06/1984 1.40 06/25/1985 2.10 06/29/1986 1.22 03/16/1987 1.90 07/15/1988 2.02 07/14/1989 1.40 04/23/1990 1.12 06/14/1991 2.90 08/24/1992 1.90 04/18/1993 1.52 06/18/1994 2.93 08/04/1996 4.80 08/14/1997 1.50 05/21/1998 2.30 05/26/2000 1.70 08/29/2002 2.70 09/10/2003 2.50 06/21/2005 3.00 09/10/2006 3.40 10/15/2007 3.00 10/06/2008 2.70 08/15/2009 3.00 Duration: 1 day 08/18/1949 3.21 07/18/1950 1.99 07/02/1951 2.39 05/30/1954 3.66 06/23/1955 2.09 05/29/1956 1.54 10/15/1957 1.68 07/30/1958 3.78 05/20/1959 1.88 05/05/1960 2.23 06/14/1961 2.63 05/21/1962 1.62 06/15/1963 1.47 06/22/1964 2.84 09/29/1965 2.25 08/12/1966 1.57 06/13/1967 1.71 07/29/1968 2.05 06/25/1969 3.12 10/07/1970 1.61 06/04/1971 2.77 07/20/1972 3.48 05/26/1973 2.86 05/27/1974 1.37 06/23/1976 1.88 07/20/1977 2.50 08/14/1978 2.41 05/09/1979 2.23 05/26/1980 3.12 06/02/1981 2.68 05/25/1982 2.23 05/01/1983 2.41 05/06/1984 1.43 06/26/1985 2.59 06/29/1986 1.25 03/23/1987 2.50 07/15/1988 1.96 07/15/1989 1.43 03/13/1990 1.25 06/14/1991 2.59 10/07/1992 2.41 04/19/1993 1.88 06/18/1994 2.68 08/21/1995 3.57 08/05/1996 4.46 10/13/1997 1.43 05/22/1998 2.05 04/06/1999 1.84 05/27/2000 1.61 08/15/2001 4.04 08/05/2002 2.41 09/11/2003 2.41 05/23/2004 1.70 06/21/2005 2.77 09/11/2006 3.12 05/30/2007 3.48 10/07/2008 2.74 08/16/2009 3.04 08/02/2010 3.05 Duration: 2 days 05/20/1949 3.47 07/18/1950 2.15 07/01/1951 2.63 05/30/1954 3.94 06/23/1955 2.25 07/11/1956 1.70 10/14/1957 1.83 07/29/1958 4.14 05/04/1959 3.12 05/05/1960 2.74 06/14/1961 2.88 05/20/1962 2.40 06/14/1963 1.89 06/21/1964 3.08 05/24/1965 3.00 06/07/1966 1.75 06/13/1967 3.29 10/16/1968 4.33 06/24/1969 3.37 06/10/1970 2.12 02/18/1971 3.37 04/30/1972 3.85 05/26/1973 3.65 05/27/1974 2.60 06/23/1976 2.02 07/20/1977 3.17 07/20/1978 3.56 05/08/1979 3.27 05/26/1980 3.37 06/13/1981 2.98 05/25/1982 3.08 06/26/1983 2.88 05/05/1984 1.54 06/25/1985 3.08 04/13/1986 1.35 03/22/1987 3.27 09/27/1988 3.08 07/14/1989 1.73 06/15/1990 1.54 06/14/1991 2.79 10/07/1992 3.56 05/28/1993 2.02 07/12/1994 3.08 08/21/1995 4.92 08/05/1996 4.90 10/12/1997 3.09 05/22/1998 2.50 04/06/1999 1.98 05/26/2000 2.31 08/15/2001 4.35 08/04/2002 3.36 09/10/2003 3.37 09/14/2004 2.45 06/21/2005 2.98 09/10/2006 3.46 10/15/2007 4.62 10/07/2008 2.95 08/15/2009 3.62 06/11/2010 4.60 Duration: 3 days 05/20/1949 3.70 07/16/1950 2.63 07/01/1951 2.74 05/30/1954 4.10 06/22/1955 2.74 06/20/1956 1.80 10/14/1957 1.90 07/29/1958 4.31 05/04/1959 3.25 05/03/1960 3.30 06/14/1961 2.99 05/20/1962 2.50 06/14/1963 1.97 06/20/1964 3.42 05/24/1965 3.12 06/07/1966 1.84 06/13/1967 3.43 10/15/1968 4.50 06/24/1969 3.50 06/10/1970 2.20 02/18/1971 3.50 07/19/1972 4.00 05/26/1973 3.80 05/27/1974 2.70 05/21/1976 2.10 05/19/1977 3.40 07/20/1978 3.80 05/08/1979 3.60 05/26/1980 3.50 06/13/1981 3.10 05/24/1982 3.20 06/26/1983 3.00 05/04/1984 1.70 04/21/1985 3.20 03/16/1986 1.60 03/22/1987 3.70 09/27/1988 3.20 06/24/1989 1.80 06/15/1990 1.60 06/14/1991 2.90 10/06/1992 3.67 05/28/1993 2.25 07/12/1994 3.11 08/19/1995 5.36 08/05/1996 5.12 10/12/1997 3.13 10/03/1998 2.52 04/04/1999 2.00 06/24/2000 2.33 08/15/2001 4.39 08/04/2002 3.39 09/10/2003 3.74 09/14/2004 2.47 06/21/2005 3.01 09/10/2006 3.49 10/14/2007 4.87 10/07/2008 2.98 08/14/2009 3.87 06/10/2010 4.78 Duration: 4 days 05/20/1949 3.75 07/15/1950 4.31 07/01/1951 2.77 05/30/1954 5.64 06/21/1955 2.79 07/11/1956 2.15 05/10/1957 1.94 07/27/1958 4.35 05/03/1959 3.35 05/03/1960 3.33 06/12/1961 3.04 05/18/1962 2.59 06/14/1963 1.99 06/19/1964 3.46 05/22/1965 4.02 06/05/1966 2.04 06/11/1967 3.88 10/15/1968 4.54 06/22/1969 3.90 06/10/1970 2.22 02/18/1971 3.53 07/17/1972 6.40 05/24/1973 3.90 05/27/1974 3.20 05/21/1976 2.12 05/19/1977 3.60 07/20/1978 3.84 05/08/1979 3.64 05/26/1980 3.53 06/11/1981 3.13 05/24/1982 3.23 06/26/1983 3.03 06/09/1984 1.90 04/20/1985 3.30 09/16/1986 1.80 03/22/1987 3.80 09/27/1988 3.23 07/14/1989 1.90 06/13/1990 1.70 06/14/1991 2.93 10/06/1992 3.71 05/28/1993 2.27 07/02/1994 3.23 08/19/1995 6.61 08/05/1996 5.17 10/12/1997 3.16 10/02/1998 2.57 04/06/1999 2.60 05/27/2000 2.46 08/15/2001 4.44 08/04/2002 3.43 09/10/2003 3.78 05/22/2004 2.50 04/19/2005 3.26 09/10/2006 3.53 10/14/2007 5.14 10/07/2008 3.01 08/14/2009 3.91 06/11/2010 5.56 Duration: 7 days 05/16/1949 3.81 07/15/1950 4.83 08/14/1951 3.58 05/27/1954 6.22 06/17/1955 3.73 06/20/1956 3.50 05/08/1957 3.40 07/24/1958 5.21 05/03/1959 3.75 08/23/1960 4.07 06/10/1961 3.10 05/16/1962 4.26 06/14/1963 2.12 06/16/1964 4.55 05/21/1965 4.14 06/03/1966 2.81 06/10/1967 5.25 10/15/1968 4.59 06/22/1969 3.94 09/14/1970 3.00 06/04/1971 4.10 07/19/1972 7.30 05/23/1973 4.10 05/27/1974 3.60 05/21/1976 2.14 05/16/1977 3.90 07/20/1978 3.88 05/08/1979 3.68 05/26/1980 3.70 06/09/1981 3.30 05/24/1982 4.70 06/12/1983 3.50 04/07/1984 3.10 04/20/1985 5.10 09/16/1986 2.90 03/17/1987 5.90 09/27/1988 3.26 07/14/1989 1.92 03/07/1990 2.50 06/09/1991 3.30 10/06/1992 3.75 07/02/1993 3.23 06/18/1994 4.38 08/19/1995 6.69 08/05/1996 5.65 10/09/1997 3.67 06/12/1998 2.71 06/10/1999 2.97 05/26/2000 2.80 08/15/2001 4.48 08/04/2002 3.47 09/10/2003 3.82 05/17/2004 3.22 05/08/2005 3.72 09/10/2006 5.15 10/13/2007 6.14 05/23/2008 4.55 08/14/2009 4.37 06/08/2010 6.24 Duration: 10 days 05/15/1949 3.93 07/15/1950 5.82 08/12/1951 4.39 05/26/1954 6.79 06/16/1955 4.35 06/20/1956 3.72 05/08/1957 3.96 07/26/1958 5.31 05/02/1959 4.02 08/19/1960 4.24 06/06/1961 3.73 05/17/1962 4.35 06/14/1963 2.21 06/13/1964 4.99 05/21/1965 4.18 08/12/1966 3.10 06/06/1967 6.61 10/08/1968 4.90 06/22/1969 3.98 09/14/1970 3.70 06/04/1971 4.40 07/17/1972 9.80 05/26/1973 4.20 05/27/1974 4.60 06/23/1976 2.40 05/19/1977 4.80 07/14/1978 4.00 05/01/1979 4.60 05/26/1980 3.74 06/11/1981 3.33 05/21/1982 5.60 06/12/1983 3.70 04/02/1984 3.90 04/21/1985 5.90 09/14/1986 3.00 03/15/1987 7.40 09/19/1988 3.70 03/06/1990 2.90 06/14/1991 4.60 07/21/1992 4.34 07/02/1993 3.84 07/04/1994 5.75 08/19/1995 6.76 07/27/1996 6.34 10/09/1997 3.71 06/09/1998 3.16 04/06/1999 4.54 05/18/2000 3.11 08/15/2001 4.53 08/04/2002 4.23 09/10/2003 4.74 09/14/2004 4.14 04/11/2005 4.48 09/10/2006 5.20 10/08/2007 6.33 05/23/2008 4.60 08/16/2009 4.54 06/06/2010 6.39 Duration: 20 days 05/05/1949 4.68 07/08/1950 6.58 08/08/1951 6.26 05/23/1954 8.07 06/05/1955 5.05 06/25/1956 4.46 05/01/1957 5.31 07/17/1958 6.94 05/02/1959 5.69 05/03/1960 5.81 05/30/1961 5.49 05/20/1962 6.28 06/14/1963 4.16 06/13/1964 6.87 05/07/1965 6.30 08/06/1966 3.88 05/27/1967 9.71 07/29/1968 5.10 06/10/1969 5.20 09/06/1970 5.10 05/30/1971 5.60 07/14/1972 11.70 05/26/1973 6.90 05/17/1974 6.50 05/12/1976 2.80 05/10/1977 5.70 07/05/1978 4.80 05/01/1979 5.80 05/12/1980 6.00 06/02/1981 5.70 05/11/1982 8.40 06/12/1983 6.70 04/06/1984 5.80 04/19/1985 6.40 09/14/1986 4.30 03/15/1987 7.70 09/14/1988 4.60 08/20/1989 3.30 05/08/1990 3.30 06/04/1991 6.40 07/19/1992 6.37 07/03/1993 6.49 06/18/1994 8.39 09/18/1995 7.64 07/23/1996 7.72 10/09/1997 4.25 08/02/1998 4.77 04/04/1999 5.20 05/18/2000 4.20 08/15/2001 5.12 08/04/2002 4.81 04/25/2003 4.84 05/23/2004 5.10 06/03/2005 6.65 09/10/2006 6.44 08/04/2007 9.48 05/23/2008 7.22 08/15/2009 5.62 05/30/2010 8.65 Duration: 30 days 08/12/1949 6.97 07/14/1950 9.02 07/26/1951 6.71 05/23/1954 10.39 05/26/1955 7.21 06/19/1956 6.79 04/22/1957 5.57 07/02/1958 9.33 05/02/1959 6.88 04/27/1960 6.68 05/16/1961 5.82 05/12/1962 8.34 06/14/1963 5.08 06/13/1964 7.53 05/14/1965 8.44 08/06/1966 5.72 05/26/1967 12.02 09/18/1968 5.30 06/10/1969 5.20 09/13/1970 6.60 05/11/1971 6.60 07/14/1972 12.20 05/23/1973 7.60 05/16/1974 8.10 05/19/1977 6.80 07/20/1978 7.00 04/19/1979 7.50 05/12/1980 6.00 05/16/1981 6.40 05/04/1982 9.10 06/12/1983 6.70 04/07/1984 8.40 04/19/1985 8.00 09/12/1986 5.30 03/15/1987 8.50 04/22/1988 4.70 06/17/1989 3.80 04/23/1990 4.10 05/23/1991 7.60 07/09/1992 8.04 06/23/1993 9.07 06/18/1994 12.40 08/21/1995 9.70 07/23/1996 8.06 06/18/1997 5.52 05/20/1998 6.84 04/06/1999 6.25 05/27/2000 5.12 04/07/2001 7.05 08/04/2002 7.64 04/16/2003 5.41 05/22/2004 7.03 05/25/2005 8.15 08/28/2006 7.39 08/05/2007 9.87 05/10/2008 8.36 08/14/2009 6.11 05/30/2010 9.84 Duration: 45 days 05/20/1949 7.89 07/04/1950 11.86 08/08/1951 9.13 05/23/1954 10.69 05/17/1955 8.34 05/29/1956 8.20 05/08/1957 6.75 06/17/1958 10.38 04/18/1959 8.02 04/27/1960 9.21 05/04/1961 8.93 05/12/1962 9.77 06/14/1963 6.17 06/16/1964 7.79 05/14/1965 10.02 08/06/1966 6.75 05/27/1967 12.34 09/03/1968 7.40 05/12/1969 7.50 09/02/1970 8.00 05/05/1971 8.50 06/12/1972 13.50 05/23/1973 8.20 04/26/1974 9.40 05/12/1976 5.00 04/12/1977 8.50 07/05/1978 8.00 04/19/1979 8.30 05/12/1980 6.00 05/03/1981 7.90 05/04/1982 10.20 06/12/1983 7.30 04/02/1984 10.20 04/19/1985 8.70 05/16/1986 6.60 03/15/1987 8.50 04/22/1988 5.90 05/08/1990 6.20 05/17/1991 9.60 07/12/1992 10.77 06/11/1993 12.22 06/18/1994 13.33 08/19/1995 12.79 07/02/1996 9.50 05/24/1997 6.87 05/12/1998 7.82 05/03/1999 7.85 05/18/2000 7.12 08/04/2001 8.13 08/04/2002 8.82 04/25/2003 7.55 05/10/2004 9.10 05/08/2005 12.18 08/11/2006 10.37 07/13/2007 11.73 04/25/2008 10.66 07/31/2009 6.65 05/30/2010 13.74 Duration: 60 days 07/13/1949 9.06 06/17/1950 12.94 07/01/1951 11.86 04/29/1954 11.99 05/17/1955 9.38 05/27/1956 9.15 05/03/1957 8.87 06/08/1958 11.71 05/02/1959 9.40 05/03/1960 11.45 05/30/1961 9.54 05/16/1962 11.16 06/14/1963 7.85 04/25/1964 9.82 05/07/1965 11.11 07/08/1966 7.89 05/27/1967 13.07 07/23/1968 8.60 04/27/1969 8.50 09/02/1970 8.90 04/20/1971 10.00 06/12/1972 15.10 05/23/1973 9.50 04/11/1974 9.80 03/28/1976 5.80 04/01/1977 10.30 07/05/1978 8.70 03/21/1979 10.90 03/28/1980 7.30 06/02/1981 9.10 05/11/1982 11.40 06/12/1983 8.50 04/02/1984 12.30 04/19/1985 9.20 05/15/1986 8.10 03/15/1987 9.70 05/20/1988 8.20 07/14/1989 5.80 04/23/1990 7.60 04/23/1991 11.30 07/11/1992 13.81 05/22/1993 15.91 05/28/1994 14.30 08/19/1995 15.08 07/23/1996 11.17 05/24/1997 9.22 05/12/1998 9.45 04/06/1999 10.07 05/18/2000 8.84 07/21/2001 9.36 07/22/2002 9.03 04/07/2003 8.55 05/10/2004 10.79 04/11/2005 13.57 08/02/2006 12.52 08/21/2007 14.54 04/10/2008 12.05 08/14/2009 8.03 06/04/2010 16.83