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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 11.51" | 10.53" | 16.44" | 15.11" | 13.53" | 8.94" | 15.87" | 18.28" | 9.70" | 14.20" | 11.16" | 13.14" | 12.70" | 14.73" | 12.24" | 12.39" | 16.51" | 20.66" | 8.93" | 16.19" | 18.07" | 15.17" | 11.89" | 13.45" | 14.39" | 14.30" | 11.94" | 19.21" | 16.21" | 15.16" | 9.07" | 19.71" | 10.66" | 12.29" | 12.71" | 9.21" | 23.36" | 16.45" | 11.30" | 12.93" | 9.58" | 24.57" | 11.74" | 18.92" | 10.72" | 6.91" | 11.02" | 12.17" | 15.18" | 17.68" | 18.84" | 13.80" | 15.65" | 18.24" | 25.32" | 15.95" | 17.80" | 14.86" | 18.09" | 15.10" | 17.25" | 22.42" | 11.03" | 11.00" | 12.60" | 12.42" | 24.04" | 7.44" | 11.11" | 14.49" | 10.17" | 10.78" | 12.21" | 13.35" | 14.04" | 14.72" | 16.03" | 16.49" | 19.25" | 15.85" | 12.03" | 7.92" | 10.61" | 20.70" | 9.78" | 7.24" | 15.21" | 14.17" | 13.12" | 10.17" | 6.99" | 13.19" | 14.06" | 19.72" | 15.46" | 22.90" | 16.56" | 11.51" | 19.75" | 11.60" | 11.61" | 15.95" | 13.29" | 18.51" | 10.57" | 14.47" | 14.15" | 18.55" | 12.20" | 15.52" | 12.46" | 9.59" | 11.83" | 15.58" | 14.55" | 10.18" | 13.82" | 17.37" |
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