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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 21.87" | 22.49" | 9.39" | 10.19" | 29.70" | 27.73" | 14.30" | 24.36" | 17.74" | 25.87" | 19.42" | 30.17" | 23.36" | 43.97" | 33.07" | 34.97" | 14.67" | 23.36" | 46.59" | 30.13" | 43.26" | 22.58" | 8.09" | 18.73" | 10.48" | 42.20" | 25.23" | 29.53" | 7.02" | 21.07" | 16.24" | 30.19" | 21.60" | 15.85" | 18.90" | 10.02" | 22.87" | 12.76" | 15.84" | 21.39" | 18.32" | 11.12" | 25.12" | 11.10" | 20.18" | 30.21" | 26.01" | 24.05" | 10.75" | 16.09" | 24.51" | 12.37" | 13.84" | 11.80" | 16.04" | 32.17" | 34.58" | 25.21" | 16.51" | 17.48" | 37.65" | 10.59" | 21.83" | 13.58" | 12.64" | 15.18" | 13.56" | 25.08" | 18.85" | 34.04" | 20.64" | 29.11" | 16.91" | 33.32" | 17.72" | 26.80" | 14.25" | 27.95" | 32.44" | 10.48" | 9.30" | 7.56" | 28.78" | 14.08" | 25.19" | 14.65" | 35.50" | 31.10" | 30.56" | 17.16" | 20.62" | 11.16" | 20.07" | 15.50" | 16.96" | 5.00" | 9.89" | 28.80" | 12.74" | 35.42" | 19.41" | 38.87" | 27.79" | 18.54" | 16.55" | 12.24" | 23.44" | 24.13" | 19.98" | 22.25" | 28.21" | 9.96" | 19.68" | 11.28" | 19.44" | 21.99" | 10.06" | 19.42" |
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