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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 25.67" | 12.84" | 19.75" | 23.72" | 21.84" | 29.56" | 13.70" | 18.05" | 25.38" | 23.36" | 32.89" | 23.59" | 20.32" | 28.21" | 15.17" | 17.27" | 21.95" | 19.87" | 14.69" | 26.99" | 26.90" | 15.28" | 14.40" | 15.15" | 28.04" | 22.16" | 24.02" | 27.07" | 23.24" | 18.73" | 12.27" | 21.76" | 24.39" | 21.43" | 20.99" | 17.10" | 17.69" | 22.30" | 19.79" | 14.67" | 27.63" | 13.33" | 15.17" | 22.23" | 18.43" | 26.65" | 30.88" | 25.75" | 14.81" | 23.87" | 28.97" | 22.19" | 16.68" | 18.29" | 21.85" | 25.47" | 17.76" | 16.26" | 18.53" | 12.43" | 20.05" | 10.89" | 33.15" | 21.94" | 21.18" | 17.03" | 19.77" | 19.68" | 13.63" | 17.71" | 20.84" | 24.80" | 16.54" | 25.04" | 22.22" | 18.29" | 17.74" | 13.43" | 24.95" | 17.94" | 23.67" | 23.03" | 19.27" | 16.97" | 26.87" | 13.41" | 23.79" | 24.58" | 19.84" | 14.68" | 19.60" | 24.06" | 22.03" | 15.02" | 29.41" | 29.47" | 22.65" | 25.21" | 18.62" | 21.24" | 26.17" | 18.27" | 28.76" | 14.88" | 16.62" | 19.16" | 21.64" | 21.77" | 17.35" | 29.05" | 16.83" | 16.83" | 35.45" | 21.68" | 21.23" | 19.60" | 10.28" | 19.24" |
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