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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 9.19" | 10.42" | 8.39" | 8.26" | 9.30" | 10.33" | 9.54" | 8.82" | 10.56" | 7.68" | 9.69" | 11.54" | 7.88" | 9.84" | 10.20" | 9.36" | 11.92" | 10.62" | 9.65" | 9.45" | 10.91" | 10.30" | 8.83" | 9.86" | 10.38" | 8.80" | 9.35" | 8.82" | 11.00" | 9.67" | 8.01" | 11.88" | 9.72" | 9.35" | 9.43" | 9.21" | 10.03" | 9.02" | 7.92" | 8.65" | 7.40" | 7.66" | 8.63" | 7.82" | 8.61" | 9.55" | 12.20" | 9.69" | 8.49" | 9.44" | 8.66" | 11.89" | 9.70" | 8.78" | 9.36" | 9.50" | 10.86" | 8.32" | 8.06" | 8.82" | 7.54" | 8.56" | 10.02" | 7.21" | 9.80" | 7.94" | 9.18" | 8.74" | 9.06" | 8.39" | 9.50" | 9.90" | 8.28" | 11.07" | 8.79" | 10.01" | 10.35" | 10.16" | 11.36" | 9.65" | 9.50" | 7.65" | 12.37" | 9.89" | 7.83" | 8.90" | 9.53" | 11.46" | 11.14" | 8.49" | 12.81" | 11.09" | 7.56" | 8.51" | 9.36" | 8.70" | 8.71" | 9.57" | 9.25" | 10.90" | 9.75" | 11.42" | 9.79" | 12.09" | 8.97" | 9.29" | 7.03" | 9.77" | 7.91" | 9.98" | 10.32" | 11.43" | 9.28" | 11.91" | 10.98" | 11.63" | 8.76" | 7.10" |
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