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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 14.10" | 18.23" | 16.63" | 13.68" | 15.34" | 14.12" | 11.49" | 15.11" | 15.28" | 17.26" | 16.65" | 18.38" | 14.67" | 19.45" | 16.19" | 17.27" | 20.02" | 14.59" | 21.92" | 17.91" | 17.49" | 17.30" | 15.17" | 16.31" | 18.86" | 19.85" | 14.94" | 18.91" | 14.41" | 15.91" | 18.09" | 18.44" | 17.42" | 17.46" | 18.11" | 12.41" | 14.83" | 13.19" | 11.58" | 13.73" | 14.88" | 14.03" | 16.78" | 13.34" | 13.07" | 20.19" | 20.13" | 16.99" | 15.41" | 16.49" | 14.22" | 18.53" | 16.24" | 17.05" | 11.85" | 14.75" | 15.86" | 13.47" | 11.05" | 14.35" | 11.77" | 19.24" | 15.42" | 13.49" | 14.50" | 15.98" | 15.17" | 13.08" | 12.99" | 18.37" | 13.65" | 16.44" | 14.49" | 15.92" | 15.90" | 14.97" | 13.53" | 18.23" | 13.14" | 14.73" | 12.57" | 13.76" | 13.47" | 17.74" | 16.21" | 14.52" | 15.96" | 18.76" | 17.79" | 16.43" | 17.57" | 18.17" | 14.73" | 13.68" | 15.12" | 16.80" | 17.47" | 16.03" | 14.15" | 20.18" | 14.81" | 19.20" | 17.90" | 19.85" | 12.98" | 15.75" | 8.52" | 15.59" | 15.01" | 16.82" | 14.76" | 18.23" | 15.48" | 16.22" | 16.92" | 14.55" | 11.54" |
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