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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 20.13" | 21.63" | 20.50" | 20.74" | 21.38" | 20.03" | 19.13" | 23.16" | 19.06" | 21.39" | 21.78" | 22.43" | 23.07" | 21.54" | 19.18" | 18.29" | 23.10" | 20.08" | 21.32" | 22.36" | 22.02" | 19.29" | 16.82" | 23.00" | 22.90" | 21.17" | 22.15" | 21.79" | 20.13" | 17.24" | 19.85" | 23.43" | 21.96" | 21.83" | 19.69" | 17.62" | 22.29" | 20.82" | 16.67" | 22.30" | 18.47" | 21.57" | 23.12" | 19.57" | 19.14" | 22.23" | 23.08" | 21.70" | 21.36" | 22.44" | 21.85" | 22.78" | 22.10" | 23.10" | 21.34" | 20.52" | 21.67" | 20.43" | 18.73" | 19.08" | 18.76" | 22.77" | 23.45" | 18.91" | 21.43" | 21.12" | 21.14" | 18.52" | 19.45" | 21.26" | 18.27" | 19.98" | 20.94" | 22.52" | 20.80" | 20.02" | 21.67" | 25.96" | 23.26" | 23.57" | 19.97" | 17.81" | 22.73" | 23.08" | 21.31" | 18.97" | 23.51" | 26.25" | 24.34" | 21.47" | 21.87" | 21.89" | 17.49" | 21.42" | 21.29" | 24.08" | 21.51" | 24.68" | 20.66" | 25.03" | 21.99" | 24.68" | 24.83" | 23.15" | 19.34" | 20.87" | 19.64" | 23.12" | 22.01" | 23.61" | 20.18" | 22.02" | 22.29" | 21.43" | 24.74" | 21.39" | 19.73" |
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