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.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 17.99" | 14.42" | 22.89" | 28.55" | 23.26" | 18.84" | 15.30" | 23.13" | 20.83" | 22.55" | 27.01" | 21.29" | 20.77" | 31.35" | 15.54" | 12.31" | 16.41" | 19.14" | 16.30" | 13.94" | 29.44" | 20.19" | 12.70" | 15.92" | 19.35" | 19.10" | 23.10" | 25.32" | 22.38" | 17.94" | 15.67" | 19.44" | 25.29" | 23.64" | 24.02" | 18.58" | 17.33" | 22.75" | 16.32" | 12.76" | 24.17" | 9.56" | 16.81" | 26.22" | 19.33" | 19.32" | 24.47" | 22.43" | 19.03" | 22.78" | 29.73" | 20.01" | 21.48" | 23.63" | 27.60" | 25.84" | 23.62" | 16.61" | 20.35" | 14.32" | 19.13" | 13.82" | 34.43" | 23.29" | 22.23" | 22.18" | 21.27" | 18.89" | 14.60" | 16.67" | 17.48" | 14.85" | 19.78" | 23.80" | 20.53" | 15.15" | 16.15" | 13.50" | 28.97" | 17.14" | 25.21" | 17.41" | 20.68" | 19.89" | 24.41" | 18.15" | 20.24" | 25.65" | 20.67" | 17.27" | 25.62" | 18.89" | 24.87" | 17.23" | 25.07" | 30.08" | 19.38" | 23.86" | 25.00" | 20.68" | 26.88" | 17.20" | 22.39" | 20.08" | 26.43" | 23.77" | 19.87" | 21.52" | 15.89" | 25.29" | 17.98" | 15.65" | 32.21" | 25.71" | 20.54" | 22.39" | 11.76" | 17.72" |
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