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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 16.12" | 18.02" | 17.34" | 15.18" | 14.67" | 13.79" | 13.90" | 16.01" | 16.32" | 10.85" | 11.90" | 17.24" | 13.26" | 15.43" | 18.51" | 14.74" | 14.98" | 13.04" | 15.37" | 9.62" | 17.53" | 11.67" | 16.99" | 13.24" | 10.02" | 16.22" | 12.45" | 12.44" | 10.56" | 15.77" | 12.33" | 18.02" | 13.78" | 9.73" | 12.31" | 8.75" | 13.78" | 15.87" | 14.82" | 14.70" | 13.85" | 10.67" | 17.16" | 12.12" | 14.56" | 11.20" | 13.57" | 17.97" | 7.89" | 11.96" | 16.96" | 13.23" | 13.08" | 15.63" | 16.30" | 17.21" | 14.26" | 15.91" | 17.22" | 10.37" | 20.61" | 10.33" | 15.78" | 16.27" | 11.01" | 16.09" | 11.78" | 12.15" | 14.00" | 20.03" | 12.61" | 16.09" | 12.89" | 17.49" | 14.97" | 17.25" | 17.79" | 11.47" | 21.78" | 16.08" | 15.69" | 4.75" | 16.66" | 11.46" | 13.48" | 13.91" | 19.28" | 16.48" | 16.59" | 11.32" | 13.89" | 11.40" | 11.34" | 13.72" | 12.59" | 11.34" | 12.04" | 11.78" | 9.95" | 15.78" | 20.31" | 20.41" | 13.27" | 21.51" | 15.62" | 6.65" | 14.97" | 13.37" | 14.51" | 8.15" | 18.11" | 16.83" | 13.34" | 12.67" | 11.74" | 14.65" | 11.70" | 13.25" |
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