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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 20.18" | 13.88" | 20.39" | 19.13" | 19.10" | 15.30" | 20.14" | 19.27" | 13.94" | 11.83" | 14.73" | 13.45" | 18.33" | 15.94" | 14.36" | 13.85" | 16.35" | 17.80" | 14.40" | 15.04" | 15.14" | 15.01" | 11.19" | 14.69" | 15.66" | 16.40" | 16.55" | 13.82" | 15.36" | 14.10" | 15.00" | 14.74" | 18.85" | 13.61" | 14.97" | 11.44" | 14.92" | 15.68" | 12.90" | 14.97" | 19.93" | 16.92" | 14.32" | 16.13" | 12.82" | 14.08" | 15.22" | 15.43" | 13.13" | 15.79" | 14.84" | 13.71" | 14.91" | 18.00" | 16.38" | 21.11" | 19.72" | 19.19" | 15.37" | 16.91" | 14.58" | 12.59" | 19.39" | 13.65" | 17.75" | 13.31" | 14.33" | 14.52" | 17.56" | 13.65" | 13.41" | 13.61" | 14.10" | 15.98" | 18.11" | 17.12" | 16.91" | 19.89" | 18.83" | 17.09" | 17.74" | 13.14" | 20.07" | 19.14" | 13.19" | 12.28" | 14.61" | 16.44" | 21.91" | 13.21" | 17.58" | 15.34" | 12.58" | 14.02" | 14.28" | 17.16" | 14.55" | 17.68" | 19.67" | 14.74" | 17.98" | 18.27" | 20.24" | 15.53" | 15.08" | 15.47" | 12.55" | 16.59" | 15.57" | 17.68" | 16.04" | 16.79" | 21.91" | 16.08" | 18.85" | 17.78" | 13.51" | 13.63" |
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