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.
| 1895 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 18.66" | 13.15" | 18.07" | 10.10" | 18.62" | 19.27" | 16.13" | 15.18" | 19.74" | 11.53" | 14.20" | 14.20" | 10.86" | 16.46" | 15.20" | 11.28" | 11.48" | 20.99" | 16.82" | 12.73" | 13.00" | 9.59" | 16.21" | 14.40" | 16.20" | 19.42" | 12.57" | 18.43" | 15.27" | 16.68" | 13.28" | 16.77" | 10.78" | 16.65" | 21.02" | 12.67" | 12.42" | 14.34" | 16.58" | 14.59" | 14.37" | 23.30" | 20.21" | 12.06" | 17.35" | 14.91" | 11.70" | 15.24" | 15.10" | 22.30" | 14.39" | 16.21" | 18.14" | 19.52" | 15.49" | 11.49" | 13.37" | 16.71" | 17.92" | 12.14" | 13.88" | 15.21" | 15.28" | 18.57" | 18.17" | 19.00" | 19.64" | 17.80" | 15.09" | 23.04" | 16.35" | 17.72" | 11.22" | 10.81" | 14.44" | 15.81" | 17.28" | 15.89" | 21.60" | 15.63" | 20.60" | 11.79" | 14.27" | 16.39" | 21.96" | 20.12" | 11.33" | 18.82" | 23.19" | 18.40" | 11.52" | 10.10" | 19.06" | 14.31" | 14.88" | 17.24" | 21.24" | 15.78" | 19.23" | 18.07" | 15.34" | 18.29" | 17.35" | 24.75" | 13.79" | 13.88" | 14.05" | 13.15" | 18.65" | 11.75" | 16.34" | 11.23" | 11.48" | 15.50" | 14.63" | 15.84" | 14.73" | 11.91" | 18.22" |
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