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.
| 1895 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 11.07" | 15.59" | 13.59" | 16.57" | 12.89" | 12.44" | 14.74" | 16.95" | 15.40" | 15.43" | 15.61" | 14.74" | 16.13" | 11.37" | 10.94" | 10.99" | 16.56" | 15.24" | 14.38" | 11.04" | 17.20" | 12.60" | 16.39" | 15.14" | 16.01" | 15.24" | 12.69" | 12.21" | 12.16" | 13.34" | 15.31" | 16.70" | 17.33" | 14.95" | 12.24" | 9.29" | 15.26" | 16.08" | 16.74" | 14.91" | 13.98" | 14.07" | 16.04" | 18.01" | 13.68" | 11.97" | 13.19" | 16.17" | 14.67" | 13.29" | 17.77" | 14.78" | 12.09" | 11.51" | 13.42" | 13.41" | 13.28" | 12.55" | 12.15" | 16.69" | 18.67" | 14.82" | 10.25" | 17.00" | 16.19" | 14.91" | 12.76" | 14.96" | 10.78" | 10.35" | 13.43" | 12.97" | 15.97" | 10.62" | 14.02" | 14.75" | 15.73" | 13.08" | 13.84" | 13.89" | 19.25" | 19.13" | 19.22" | 13.03" | 17.80" | 13.88" | 17.35" | 10.71" | 12.64" | 12.96" | 14.46" | 15.30" | 16.15" | 15.07" | 16.62" | 19.03" | 15.37" | 16.18" | 14.26" | 14.07" | 15.82" | 19.67" | 12.97" | 12.62" | 17.71" | 14.04" | 11.65" | 13.78" | 20.60" | 19.54" | 20.34" | 19.61" | 15.06" | 17.77" | 18.35" | 17.41" | 23.40" | 17.67" |
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