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 | 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 25.75" | 24.88" | 27.06" | 28.61" | 27.07" | 26.68" | 28.72" | 30.92" | 24.16" | 21.49" | 24.40" | 23.14" | 31.49" | 23.91" | 24.05" | 21.59" | 27.67" | 28.42" | 27.53" | 20.40" | 23.55" | 23.08" | 22.35" | 25.98" | 27.74" | 26.45" | 24.79" | 22.03" | 26.29" | 22.64" | 26.07" | 25.55" | 31.06" | 24.87" | 24.08" | 18.55" | 23.72" | 28.89" | 23.98" | 26.21" | 29.78" | 28.29" | 25.01" | 28.61" | 24.95" | 21.22" | 22.19" | 26.63" | 23.96" | 28.13" | 26.14" | 23.88" | 22.74" | 25.86" | 24.99" | 30.62" | 29.62" | 28.66" | 25.38" | 28.53" | 26.40" | 22.68" | 29.01" | 24.46" | 29.08" | 25.91" | 23.32" | 24.62" | 25.40" | 19.80" | 22.26" | 24.01" | 23.10" | 25.64" | 27.14" | 26.29" | 26.77" | 31.70" | 29.01" | 26.20" | 31.04" | 26.41" | 33.55" | 28.89" | 26.82" | 22.77" | 27.69" | 27.87" | 31.97" | 19.54" | 27.11" | 25.70" | 24.54" | 22.21" | 26.79" | 30.01" | 24.49" | 29.55" | 31.76" | 21.81" | 32.90" | 31.77" | 29.17" | 23.72" | 31.51" | 22.99" | 22.41" | 28.09" | 31.41" | 30.68" | 31.77" | 33.05" | 32.45" | 28.04" | 28.87" | 33.86" | 28.44" | 26.83" |
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