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.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 16.27" | 15.58" | 10.08" | 11.56" | 15.38" | 17.74" | 15.53" | 15.69" | 17.45" | 19.51" | 21.68" | 24.09" | 14.10" | 22.55" | 17.91" | 21.62" | 12.97" | 13.75" | 25.02" | 21.63" | 22.20" | 16.25" | 12.08" | 15.64" | 12.95" | 20.84" | 18.19" | 15.74" | 8.51" | 16.27" | 14.61" | 19.10" | 14.39" | 10.70" | 14.32" | 10.66" | 16.82" | 10.98" | 9.90" | 17.27" | 15.00" | 16.19" | 22.15" | 11.54" | 19.00" | 23.70" | 18.85" | 17.85" | 13.78" | 15.59" | 15.63" | 12.46" | 12.99" | 12.81" | 12.25" | 16.47" | 21.46" | 14.12" | 13.44" | 11.60" | 19.40" | 13.17" | 21.82" | 10.55" | 12.48" | 11.49" | 15.67" | 16.38" | 12.13" | 17.06" | 13.70" | 19.32" | 12.24" | 22.29" | 13.19" | 16.15" | 10.84" | 18.61" | 18.05" | 15.25" | 9.90" | 9.79" | 23.60" | 15.55" | 20.79" | 12.02" | 21.61" | 28.17" | 18.21" | 13.24" | 20.02" | 11.56" | 12.84" | 12.67" | 11.96" | 12.25" | 13.35" | 21.03" | 11.04" | 24.98" | 16.70" | 17.04" | 25.91" | 14.93" | 14.49" | 11.89" | 12.27" | 15.96" | 13.74" | 22.05" | 20.61" | 9.17" | 12.48" | 11.92" | 16.06" | 19.75" | 10.66" |
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