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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 18.05" | 25.34" | 19.26" | 25.33" | 21.77" | 21.98" | 27.67" | 16.26" | 20.60" | 20.39" | 25.08" | 25.33" | 20.29" | 20.10" | 25.87" | 26.86" | 20.15" | 24.00" | 18.00" | 15.95" | 19.60" | 21.08" | 19.91" | 16.85" | 23.33" | 20.27" | 16.66" | 21.59" | 23.32" | 20.56" | 20.30" | 26.06" | 20.87" | 24.42" | 22.99" | 19.78" | 14.63" | 22.68" | 21.41" | 22.96" | 23.19" | 21.80" | 21.87" | 19.86" | 28.12" | 22.38" | 23.04" | 21.77" | 23.15" | 22.62" | 27.71" | 23.10" | 24.48" | 22.85" | 27.65" | 18.51" | 18.11" | 16.84" | 25.26" | 17.74" | 19.56" | 16.97" | 23.73" | 18.60" | 24.08" | 24.07" | 20.49" | 22.24" | 19.03" | 22.62" | 25.71" | 23.26" | 24.80" | 25.62" | 23.47" | 20.96" | 21.19" | 20.17" | 20.73" | 26.21" | 22.40" | 18.68" | 19.35" | 22.53" | 18.63" | 17.71" | 21.53" | 25.16" | 20.09" | 20.03" | 24.86" | 22.08" | 17.71" | 21.06" | 21.71" | 19.50" | 24.84" | 26.83" | 15.68" | 26.49" | 27.12" | 20.02" | 21.52" | 17.14" | 22.31" | 18.44" | 25.46" | 26.00" | 27.59" | 26.39" | 26.53" | 19.50" | 19.12" | 28.29" | 19.55" | 19.83" | 19.12" | 29.70" |
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