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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 25.17" | 26.44" | 26.66" | 24.44" | 39.65" | 22.16" | 25.18" | 36.37" | 25.91" | 34.48" | 31.65" | 25.44" | 37.01" | 19.36" | 22.32" | 23.09" | 25.61" | 26.87" | 37.07" | 34.98" | 22.75" | 17.45" | 17.12" | 42.37" | 34.39" | 30.74" | 27.80" | 29.50" | 30.79" | 18.68" | 32.46" | 28.62" | 25.71" | 28.32" | 23.77" | 29.84" | 35.27" | 24.40" | 21.58" | 33.25" | 29.83" | 22.32" | 29.31" | 21.91" | 26.19" | 43.53" | 32.43" | 23.23" | 31.18" | 31.42" | 30.46" | 26.50" | 22.76" | 29.88" | 31.62" | 18.98" | 19.88" | 22.67" | 19.59" | 24.89" | 13.91" | 31.87" | 35.19" | 26.72" | 29.71" | 34.06" | 24.29" | 20.71" | 24.28" | 24.98" | 30.29" | 22.62" | 32.91" | 27.26" | 28.61" | 23.82" | 29.03" | 35.07" | 30.54" | 31.51" | 27.27" | 26.17" | 24.42" | 32.85" | 24.31" | 29.31" | 27.14" | 26.97" | 21.42" | 33.10" | 30.42" | 36.31" | 23.67" | 26.38" | 28.68" | 33.55" | 37.86" | 28.17" | 25.65" | 33.17" | 23.25" | 32.38" | 26.53" | 29.68" | 20.13" | 33.13" | 27.52" | 30.72" | 33.46" | 30.22" | 21.65" | 40.73" | 24.73" | 23.76" | 35.40" | 11.27" | 28.91" |
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