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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10.39" | 13.32" | 10.53" | 10.11" | 8.88" | 8.20" | 8.31" | 8.82" | 7.99" | 14.37" | 12.13" | 13.30" | 11.28" | 12.92" | 12.17" | 10.93" | 13.55" | 11.31" | 11.95" | 14.48" | 12.98" | 12.14" | 9.43" | 12.19" | 14.94" | 10.52" | 13.87" | 9.71" | 14.23" | 7.88" | 13.43" | 11.16" | 12.80" | 10.28" | 12.28" | 12.34" | 13.02" | 10.35" | 9.69" | 9.44" | 10.42" | 12.98" | 11.35" | 11.69" | 10.38" | 14.60" | 15.14" | 10.59" | 11.11" | 10.40" | 9.82" | 11.45" | 11.55" | 11.03" | 10.73" | 8.82" | 12.09" | 8.82" | 9.04" | 9.42" | 9.65" | 7.83" | 13.46" | 9.69" | 12.06" | 10.14" | 12.75" | 9.28" | 10.25" | 10.36" | 13.34" | 9.93" | 13.23" | 10.69" | 12.46" | 9.89" | 10.47" | 16.59" | 8.88" | 11.64" | 9.55" | 8.55" | 13.02" | 13.78" | 12.50" | 8.54" | 12.77" | 14.95" | 12.84" | 16.13" | 12.74" | 15.07" | 11.25" | 11.23" | 9.34" | 13.06" | 14.41" | 15.29" | 10.34" | 12.55" | 9.08" | 12.48" | 14.90" | 11.06" | 11.74" | 12.19" | 7.95" | 10.79" | 9.21" | 16.12" | 9.41" | 13.52" | 11.65" | 10.79" | 12.01" | 10.77" | 9.43" | 8.95" |
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