Choose from the options below and click "Plot" to create a time series graph.
Data are available from January 1895 through May 2013.
Move mouse towards an axis until highlighted. Left-click mouse to pan. Shift key + left-click to zoom.
| 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 | 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10.47" | 17.37" | 10.89" | 13.11" | 10.35" | 10.01" | 10.50" | 10.36" | 8.33" | 19.80" | 16.91" | 16.90" | 16.70" | 14.87" | 12.19" | 11.94" | 15.59" | 13.64" | 11.36" | 20.91" | 17.50" | 14.02" | 13.80" | 14.02" | 23.84" | 9.38" | 17.53" | 11.95" | 17.35" | 9.34" | 15.07" | 15.52" | 14.34" | 11.33" | 14.69" | 16.86" | 20.93" | 14.51" | 11.88" | 15.88" | 14.61" | 13.72" | 13.54" | 12.70" | 13.61" | 18.94" | 15.17" | 10.31" | 12.73" | 13.79" | 10.43" | 12.35" | 9.36" | 12.09" | 11.43" | 9.90" | 16.04" | 13.23" | 9.14" | 13.52" | 12.51" | 9.85" | 15.63" | 14.01" | 17.46" | 10.05" | 16.42" | 11.42" | 12.27" | 16.03" | 18.14" | 12.95" | 20.38" | 10.87" | 12.58" | 10.52" | 14.75" | 20.32" | 8.01" | 14.47" | 11.92" | 13.67" | 19.75" | 20.91" | 12.95" | 11.08" | 14.00" | 19.65" | 20.31" | 24.02" | 17.88" | 16.72" | 14.75" | 16.54" | 10.16" | 20.44" | 16.30" | 21.45" | 12.44" | 17.36" | 8.98" | 13.23" | 16.45" | 9.32" | 13.08" | 18.30" | 10.74" | 11.39" | 11.96" | 14.97" | 9.03" | 14.49" | 13.82" | 14.31" | 14.43" | 9.67" | 12.30" | 11.65" |
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