Choose from the options below and click "Plot" to create a time series graph.
Data are available from January 1895 through April 2013.
Move mouse towards an axis until highlighted. Left-click mouse to pan. Shift key + left-click to zoom.
| 1895 | 1896 | 1897 | 1898 | 1899 | 1900 | 1901 | 1902 | 1903 | 1904 | 1905 | 1906 | 1907 | 1908 | 1909 | 1910 | 1911 | 1912 | 1913 | 1914 | 1915 | 1916 | 1917 | 1918 | 1919 | 1920 | 1921 | 1922 | 1923 | 1924 | 1925 | 1926 | 1927 | 1928 | 1929 | 1930 | 1931 | 1932 | 1933 | 1934 | 1935 | 1936 | 1937 | 1938 | 1939 | 1940 | 1941 | 1942 | 1943 | 1944 | 1945 | 1946 | 1947 | 1948 | 1949 | 1950 | 1951 | 1952 | 1953 | 1954 | 1955 | 1956 | 1957 | 1958 | 1959 | 1960 | 1961 | 1962 | 1963 | 1964 | 1965 | 1966 | 1967 | 1968 | 1969 | 1970 | 1971 | 1972 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15.23" | 19.86" | 16.13" | 15.31" | 15.61" | 18.10" | 14.99" | 20.99" | 21.55" | 18.33" | 23.44" | 17.73" | 15.06" | 20.90" | 15.23" | 12.33" | 13.36" | 15.05" | 13.92" | 15.73" | 26.88" | 14.10" | 15.69" | 14.13" | 15.62" | 18.57" | 15.35" | 12.13" | 21.40" | 14.46" | 15.25" | 13.24" | 18.92" | 15.65" | 14.58" | 18.30" | 11.93" | 15.83" | 15.70" | 8.32" | 18.04" | 9.59" | 13.04" | 17.22" | 12.84" | 11.60" | 15.31" | 18.12" | 14.25" | 21.62" | 17.65" | 14.69" | 17.18" | 15.09" | 18.60" | 17.44" | 23.00" | 16.00" | 14.52" | 15.15" | 11.78" | 12.07" | 20.75" | 18.60" | 17.06" | 17.14" | 16.13" | 21.27" | 15.27" | 16.48" | 19.56" | 14.16" | 17.73" | 15.98" | 14.86" | 13.17" | 15.60" | 17.04" | 17.02" | 12.26" | 15.47" | 13.16" | 23.21" | 17.02" | 18.41" | 13.53" | 18.43" | 19.64" | 18.73" | 19.06" | 15.45" | 18.54" | 19.62" | 14.98" | 11.55" | 17.05" | 16.20" | 18.63" | 24.01" | 14.55" | 19.30" | 18.28" | 14.40" | 19.06" | 20.17" | 13.50" | 17.33" | 11.05" | 14.74" | 15.66" | 18.57" | 14.36" | 21.29" | 19.10" | 17.66" | 22.29" | 20.31" | 9.53" |
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