Choose from the options below and click "Plot" to create a time series graph.
Data are available from January 1895 through May 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 12.86" | 10.93" | 11.04" | 14.15" | 16.54" | 13.20" | 17.12" | 19.08" | 10.52" | 15.81" | 12.75" | 10.61" | 15.77" | 13.57" | 13.29" | 10.18" | 17.35" | 17.08" | 9.13" | 14.83" | 13.27" | 15.27" | 10.34" | 17.38" | 16.85" | 15.30" | 15.27" | 16.27" | 15.38" | 18.60" | 14.83" | 12.85" | 12.88" | 15.75" | 9.61" | 9.36" | 21.53" | 18.08" | 11.66" | 10.36" | 23.68" | 20.20" | 7.86" | 17.41" | 14.57" | 12.10" | 16.12" | 14.56" | 14.41" | 14.74" | 21.65" | 14.21" | 15.51" | 17.10" | 12.42" | 10.86" | 15.54" | 18.67" | 17.74" | 14.39" | 12.29" | 14.06" | 11.18" | 11.56" | 13.69" | 18.71" | 24.52" | 12.87" | 16.39" | 15.99" | 17.89" | 13.41" | 14.80" | 14.64" | 13.57" | 16.96" | 19.88" | 18.50" | 20.33" | 19.97" | 11.99" | 13.45" | 12.55" | 19.68" | 10.52" | 9.35" | 20.87" | 20.35" | 17.69" | 13.31" | 9.75" | 17.24" | 13.41" | 11.69" | 22.98" | 19.07" | 17.71" | 15.86" | 14.81" | 14.84" | 16.82" | 17.64" | 20.93" | 14.85" | 10.35" | 13.30" | 12.20" | 15.86" | 14.08" | 12.88" | 14.31" | 11.58" | 14.92" | 15.06" | 21.32" | 10.07" | 15.15" | 22.62" |
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