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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 13.90" | 17.56" | 13.30" | 15.11" | 13.37" | 20.20" | 17.32" | 13.98" | 17.13" | 13.66" | 22.56" | 17.07" | 18.12" | 15.88" | 18.63" | 19.72" | 14.90" | 18.15" | 11.83" | 15.04" | 20.76" | 21.53" | 19.91" | 14.61" | 17.68" | 20.95" | 14.80" | 18.83" | 22.42" | 15.34" | 9.31" | 19.29" | 18.46" | 23.66" | 20.21" | 12.65" | 12.45" | 13.84" | 18.85" | 16.19" | 15.59" | 11.23" | 18.22" | 21.10" | 16.53" | 13.63" | 16.33" | 15.02" | 13.04" | 13.21" | 15.49" | 15.35" | 16.06" | 11.63" | 21.12" | 21.60" | 12.36" | 12.04" | 14.71" | 10.39" | 14.67" | 13.74" | 16.00" | 16.21" | 18.82" | 15.54" | 17.31" | 13.31" | 18.50" | 16.27" | 15.54" | 17.17" | 25.52" | 13.63" | 14.16" | 16.83" | 19.48" | 17.72" | 19.55" | 21.73" | 15.32" | 18.43" | 13.80" | 19.31" | 22.29" | 15.62" | 19.62" | 16.78" | 20.76" | 21.48" | 17.87" | 15.77" | 12.63" | 10.44" | 24.02" | 13.58" | 19.05" | 19.19" | 15.62" | 19.01" | 20.32" | 19.14" | 19.83" | 24.79" | 14.52" | 14.50" | 18.25" | 15.29" | 25.16" | 21.61" | 17.05" | 15.52" | 9.21" | 14.94" | 22.02" | 25.95" | 15.27" | 15.38" |
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