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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 11.58" | 10.47" | 7.16" | 14.36" | 11.79" | 9.14" | 14.75" | 13.97" | 8.63" | 11.51" | 15.68" | 7.53" | 14.23" | 10.41" | 10.00" | 8.45" | 11.53" | 10.42" | 10.57" | 16.83" | 11.02" | 10.00" | 8.09" | 13.83" | 9.97" | 13.93" | 12.50" | 11.86" | 11.82" | 12.64" | 11.74" | 9.18" | 11.86" | 12.32" | 8.04" | 8.34" | 13.94" | 13.08" | 7.45" | 9.63" | 15.18" | 18.23" | 6.70" | 14.75" | 9.16" | 6.96" | 10.30" | 11.07" | 13.32" | 9.53" | 14.51" | 8.57" | 11.75" | 11.32" | 6.87" | 7.19" | 12.56" | 12.26" | 13.82" | 9.71" | 8.58" | 11.30" | 12.39" | 10.71" | 14.58" | 10.44" | 14.30" | 10.48" | 13.49" | 10.44" | 11.12" | 10.59" | 10.80" | 9.49" | 10.58" | 11.68" | 10.90" | 13.46" | 15.81" | 14.41" | 9.65" | 9.44" | 12.18" | 15.15" | 7.92" | 6.79" | 16.32" | 14.15" | 15.85" | 10.47" | 4.99" | 15.23" | 9.23" | 8.46" | 12.28" | 10.53" | 10.40" | 12.10" | 12.22" | 13.08" | 9.91" | 11.39" | 18.38" | 12.84" | 9.07" | 6.76" | 8.77" | 11.91" | 9.95" | 8.20" | 9.86" | 9.75" | 10.22" | 8.54" | 16.40" | 7.66" | 7.43" | 13.41" |
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