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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 20.22" | 26.29" | 26.60" | 20.22" | 23.42" | 20.69" | 21.39" | 24.19" | 25.17" | 20.01" | 22.62" | 29.86" | 24.15" | 22.98" | 22.53" | 20.05" | 16.03" | 23.66" | 19.78" | 19.65" | 20.18" | 23.71" | 24.83" | 17.67" | 30.71" | 26.09" | 19.46" | 24.15" | 22.16" | 28.98" | 15.81" | 24.20" | 20.94" | 24.68" | 21.44" | 14.74" | 21.12" | 23.26" | 25.57" | 30.05" | 23.48" | 22.59" | 22.81" | 26.55" | 22.67" | 22.25" | 20.18" | 20.15" | 20.68" | 19.92" | 28.39" | 24.63" | 19.21" | 30.02" | 18.03" | 21.99" | 21.76" | 25.94" | 24.59" | 16.71" | 19.94" | 24.17" | 16.77" | 31.19" | 23.19" | 22.13" | 26.55" | 18.98" | 17.80" | 17.84" | 16.81" | 19.19" | 20.78" | 16.63" | 22.38" | 24.97" | 21.59" | 27.44" | 21.91" | 19.05" | 30.51" | 14.20" | 13.99" | 23.79" | 26.36" | 22.07" | 21.07" | 21.97" | 29.78" | 30.55" | 17.39" | 14.06" | 16.28" | 21.63" | 35.70" | 24.94" | 21.32" | 18.86" | 22.53" | 29.31" | 17.54" | 29.71" | 19.35" | 23.80" | 16.26" | 28.03" | 25.26" | 18.98" | 31.28" | 23.74" | 24.92" | 22.42" | 19.27" | 23.29" | 21.69" | 23.65" | 19.09" | 11.85" |
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