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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15.78" | 14.02" | 11.61" | 12.86" | 12.24" | 10.01" | 11.49" | 9.84" | 12.15" | 13.58" | 15.34" | 16.92" | 13.10" | 17.23" | 15.32" | 12.14" | 12.30" | 17.52" | 15.07" | 11.20" | 18.62" | 12.43" | 13.57" | 14.14" | 10.79" | 13.64" | 11.85" | 13.23" | 18.15" | 12.21" | 15.12" | 13.68" | 17.19" | 13.54" | 14.27" | 13.42" | 11.77" | 12.42" | 11.49" | 10.46" | 12.51" | 12.50" | 15.11" | 14.41" | 10.20" | 12.93" | 17.17" | 15.20" | 11.66" | 14.70" | 16.52" | 14.61" | 16.15" | 12.82" | 13.15" | 12.90" | 13.08" | 10.97" | 10.95" | 9.14" | 12.90" | 9.33" | 14.99" | 11.31" | 10.94" | 8.75" | 12.49" | 12.82" | 12.83" | 13.10" | 13.03" | 10.66" | 15.01" | 13.79" | 11.13" | 13.16" | 14.70" | 12.74" | 14.90" | 10.09" | 12.72" | 11.60" | 12.89" | 14.54" | 10.87" | 11.56" | 13.13" | 15.41" | 15.28" | 12.59" | 11.13" | 14.12" | 12.34" | 8.38" | 11.67" | 11.86" | 13.89" | 12.57" | 15.46" | 10.90" | 16.42" | 12.86" | 14.86" | 15.73" | 12.63" | 10.75" | 9.69" | 9.40" | 11.87" | 12.08" | 13.65" | 9.83" | 12.59" | 13.04" | 13.31" | 13.89" | 14.65" | 7.90" |
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