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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 16.49" | 20.95" | 15.83" | 15.35" | 15.75" | 26.15" | 13.81" | 32.22" | 20.58" | 18.17" | 20.33" | 19.53" | 25.56" | 16.51" | 17.13" | 11.65" | 13.50" | 16.74" | 30.66" | 25.44" | 16.80" | 14.64" | 8.14" | 21.96" | 34.23" | 23.26" | 14.16" | 15.08" | 27.19" | 10.96" | 24.57" | 18.40" | 13.12" | 19.08" | 16.12" | 24.31" | 19.06" | 18.11" | 20.07" | 18.05" | 20.78" | 24.64" | 18.28" | 12.72" | 13.41" | 23.84" | 17.92" | 27.67" | 21.78" | 19.35" | 19.88" | 25.83" | 14.72" | 14.47" | 21.04" | 7.99" | 13.80" | 17.60" | 18.99" | 10.11" | 12.96" | 9.53" | 25.66" | 22.02" | 20.80" | 31.04" | 19.15" | 14.45" | 13.62" | 18.60" | 20.45" | 11.91" | 32.74" | 19.21" | 19.13" | 14.47" | 29.19" | 19.98" | 27.77" | 24.50" | 17.04" | 31.49" | 13.05" | 24.25" | 20.21" | 18.98" | 21.77" | 14.71" | 22.78" | 21.44" | 20.47" | 23.97" | 14.25" | 14.85" | 10.75" | 21.08" | 29.07" | 17.32" | 10.14" | 24.56" | 14.57" | 19.26" | 21.51" | 34.75" | 11.94" | 20.39" | 25.70" | 35.82" | 22.56" | 22.98" | 12.03" | 24.11" | 25.27" | 11.80" | 26.71" | 21.23" | 12.54" | 15.71" |
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