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.
| 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 | 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 20.23" | 25.77" | 26.51" | 23.57" | 19.21" | 19.62" | 18.52" | 26.15" | 22.05" | 16.07" | 22.10" | 24.98" | 24.78" | 23.04" | 19.93" | 21.26" | 27.33" | 25.42" | 20.65" | 18.15" | 24.74" | 22.56" | 17.56" | 21.29" | 29.09" | 21.53" | 27.38" | 23.25" | 22.11" | 16.94" | 21.97" | 30.18" | 22.72" | 25.73" | 22.13" | 16.10" | 25.28" | 25.75" | 15.90" | 22.37" | 19.59" | 27.85" | 22.99" | 24.68" | 18.22" | 16.02" | 23.07" | 22.22" | 21.46" | 25.04" | 21.07" | 22.64" | 22.41" | 27.37" | 30.21" | 23.44" | 26.24" | 20.33" | 17.34" | 24.44" | 21.38" | 23.07" | 23.35" | 18.73" | 21.23" | 21.87" | 24.25" | 18.70" | 21.20" | 22.60" | 18.18" | 20.80" | 22.76" | 22.27" | 22.33" | 18.99" | 22.84" | 30.31" | 27.78" | 26.65" | 20.90" | 18.12" | 22.31" | 28.11" | 20.97" | 16.86" | 22.27" | 25.05" | 28.47" | 26.56" | 22.53" | 20.83" | 21.01" | 26.18" | 21.71" | 29.10" | 22.07" | 24.38" | 27.57" | 21.84" | 22.79" | 25.43" | 24.38" | 24.40" | 19.44" | 18.23" | 26.63" | 21.77" | 23.04" | 27.55" | 20.35" | 24.31" | 29.70" | 23.11" | 24.19" | 26.12" | 23.96" | 25.59" |
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