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.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 17.52" | 22.79" | 16.14" | 16.34" | 17.76" | 19.19" | 19.62" | 19.50" | 19.37" | 17.99" | 19.07" | 20.14" | 14.43" | 18.74" | 18.24" | 12.63" | 18.58" | 20.55" | 14.81" | 19.14" | 19.48" | 19.98" | 10.85" | 16.11" | 15.72" | 15.43" | 19.63" | 20.06" | 17.96" | 17.31" | 16.81" | 15.50" | 21.71" | 18.03" | 14.47" | 15.09" | 15.53" | 17.14" | 13.51" | 9.78" | 18.12" | 8.67" | 17.61" | 15.21" | 14.25" | 17.34" | 23.30" | 18.83" | 18.39" | 21.54" | 14.95" | 17.17" | 18.37" | 17.53" | 16.68" | 18.34" | 16.85" | 12.36" | 20.00" | 18.61" | 17.14" | 17.43" | 18.71" | 13.63" | 15.91" | 14.82" | 13.16" | 20.80" | 17.39" | 19.33" | 20.68" | 16.74" | 14.24" | 18.94" | 16.64" | 18.86" | 19.52" | 17.37" | 16.37" | 15.69" | 20.87" | 12.11" | 21.37" | 17.62" | 14.39" | 16.78" | 16.89" | 21.31" | 15.71" | 15.89" | 17.58" | 21.71" | 16.41" | 11.50" | 14.20" | 15.05" | 19.56" | 14.63" | 22.78" | 20.83" | 19.43" | 18.33" | 16.62" | 21.80" | 20.42" | 22.00" | 16.98" | 16.41" | 16.53" | 18.94" | 21.31" | 14.21" | 19.26" | 20.05" | 19.49" | 24.25" | 21.12" | 14.59" |
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