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.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 8.47" | 4.11" | 8.49" | 6.49" | 5.38" | 13.78" | 6.19" | 7.11" | 5.85" | 7.89" | 13.91" | 6.67" | 9.85" | 11.29" | 5.17" | 7.31" | 8.29" | 7.10" | 5.65" | 13.10" | 9.14" | 7.18" | 5.39" | 7.00" | 9.70" | 6.84" | 7.55" | 13.00" | 8.22" | 8.09" | 4.88" | 10.81" | 6.41" | 6.08" | 11.56" | 8.03" | 7.23" | 6.25" | 6.45" | 7.39" | 10.69" | 8.36" | 6.02" | 7.53" | 5.05" | 7.23" | 12.74" | 8.44" | 6.72" | 9.71" | 7.65" | 8.76" | 8.64" | 5.89" | 8.87" | 7.10" | 6.39" | 8.48" | 7.24" | 6.98" | 6.20" | 4.32" | 15.46" | 7.39" | 6.82" | 4.15" | 4.14" | 4.81" | 5.34" | 5.88" | 7.73" | 8.64" | 6.18" | 9.49" | 9.66" | 7.84" | 3.99" | 6.45" | 8.14" | 6.21" | 8.36" | 9.19" | 8.28" | 5.17" | 9.84" | 7.50" | 9.37" | 8.71" | 6.60" | 4.27" | 7.74" | 7.01" | 7.66" | 5.30" | 7.26" | 10.26" | 7.63" | 9.74" | 8.20" | 8.28" | 9.41" | 3.64" | 11.01" | 3.86" | 8.57" | 7.63" | 7.14" | 5.98" | 3.42" | 8.78" | 5.38" | 5.88" | 12.23" | 6.89" | 7.79" | 7.01" | 2.66" | 7.45" |
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