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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 14.95" | 16.73" | 12.86" | 10.50" | 16.40" | 16.84" | 14.11" | 18.55" | 12.34" | 22.59" | 18.43" | 26.91" | 20.37" | 21.76" | 20.77" | 18.48" | 13.49" | 17.52" | 26.02" | 17.46" | 28.52" | 15.11" | 10.94" | 17.64" | 12.90" | 23.08" | 16.55" | 19.73" | 10.40" | 11.82" | 16.90" | 18.67" | 16.99" | 12.62" | 13.16" | 13.02" | 16.07" | 13.68" | 10.55" | 14.26" | 14.60" | 16.97" | 18.29" | 20.95" | 15.26" | 21.51" | 24.04" | 18.69" | 13.91" | 15.34" | 20.16" | 13.62" | 10.47" | 14.88" | 13.71" | 17.63" | 19.61" | 17.66" | 12.57" | 14.74" | 19.19" | 10.60" | 17.80" | 18.92" | 10.97" | 13.84" | 12.15" | 16.89" | 18.64" | 16.41" | 16.91" | 15.57" | 16.14" | 20.29" | 18.48" | 16.05" | 13.65" | 15.76" | 19.54" | 12.48" | 14.92" | 11.71" | 17.35" | 19.81" | 18.91" | 16.51" | 19.02" | 24.85" | 27.79" | 15.15" | 13.54" | 17.05" | 16.02" | 10.98" | 12.95" | 9.37" | 15.33" | 21.87" | 14.19" | 20.19" | 20.13" | 24.38" | 14.57" | 24.50" | 13.54" | 14.91" | 15.04" | 12.60" | 15.66" | 19.18" | 20.93" | 14.48" | 14.41" | 9.11" | 16.34" | 18.96" | 14.74" | 14.66" |
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