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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 27.00" | 16.85" | 18.60" | 19.17" | 24.35" | 32.07" | 17.21" | 32.79" | 24.17" | 23.64" | 26.95" | 24.14" | 31.41" | 21.93" | 20.41" | 15.32" | 9.68" | 16.89" | 31.27" | 31.41" | 15.17" | 19.38" | 11.08" | 19.15" | 42.52" | 30.60" | 17.06" | 23.11" | 20.90" | 15.31" | 22.90" | 19.75" | 15.75" | 19.94" | 23.08" | 26.00" | 12.15" | 17.76" | 17.18" | 14.14" | 30.17" | 33.70" | 14.96" | 14.50" | 16.22" | 29.72" | 27.49" | 28.18" | 20.83" | 22.70" | 19.05" | 31.03" | 16.68" | 15.91" | 20.69" | 13.83" | 20.33" | 20.10" | 19.96" | 11.47" | 17.24" | 10.12" | 27.69" | 24.78" | 24.57" | 31.77" | 25.69" | 16.22" | 13.61" | 19.08" | 22.68" | 17.67" | 29.75" | 30.59" | 19.58" | 23.33" | 28.17" | 28.49" | 35.74" | 29.16" | 26.00" | 31.90" | 16.00" | 24.62" | 24.61" | 22.32" | 35.91" | 18.33" | 26.26" | 19.23" | 25.30" | 28.11" | 27.96" | 13.55" | 15.86" | 17.12" | 22.54" | 24.90" | 22.54" | 26.72" | 21.27" | 19.57" | 29.54" | 33.20" | 16.95" | 25.26" | 26.77" | 34.71" | 22.70" | 33.53" | 15.08" | 21.59" | 32.43" | 12.71" | 22.06" | 24.45" | 9.37" | 17.37" |
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