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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 16.47" | 21.86" | 27.80" | 30.33" | 20.92" | 18.93" | 13.21" | 20.78" | 22.02" | 25.64" | 18.39" | 19.37" | 23.41" | 27.77" | 24.09" | 18.86" | 14.42" | 23.04" | 19.46" | 13.81" | 23.69" | 25.69" | 18.60" | 17.77" | 19.22" | 18.63" | 22.82" | 20.58" | 21.86" | 20.12" | 17.11" | 15.61" | 31.51" | 23.91" | 28.39" | 16.76" | 16.30" | 15.95" | 20.48" | 12.57" | 30.20" | 10.11" | 22.12" | 25.90" | 24.01" | 16.64" | 16.18" | 23.48" | 23.46" | 21.70" | 33.45" | 21.30" | 24.42" | 21.81" | 25.33" | 23.35" | 25.49" | 16.44" | 16.48" | 16.53" | 19.80" | 15.34" | 29.18" | 19.99" | 16.99" | 18.21" | 23.04" | 18.17" | 15.96" | 21.34" | 20.90" | 18.32" | 21.31" | 17.45" | 22.00" | 21.09" | 14.28" | 14.17" | 30.59" | 22.42" | 22.97" | 16.92" | 19.97" | 18.89" | 22.11" | 13.40" | 22.80" | 22.28" | 20.44" | 21.25" | 26.32" | 16.63" | 15.80" | 13.63" | 18.15" | 30.34" | 18.24" | 14.76" | 23.95" | 21.69" | 27.11" | 21.10" | 22.00" | 25.98" | 24.43" | 19.49" | 22.86" | 25.44" | 19.65" | 21.30" | 18.93" | 17.06" | 22.31" | 32.67" | 23.80" | 23.16" | 25.89" | 15.25" |
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