Choose from the options below and click "Plot" to create a time series graph.
Data are available from January 1895 through May 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 27.00" | 24.67" | 10.70" | 13.63" | 32.25" | 31.10" | 16.41" | 26.44" | 18.00" | 26.35" | 24.04" | 38.95" | 26.40" | 47.68" | 34.14" | 35.53" | 16.61" | 28.40" | 50.58" | 33.03" | 52.00" | 25.28" | 9.35" | 19.58" | 11.15" | 43.33" | 29.68" | 32.31" | 8.83" | 21.33" | 20.86" | 31.66" | 23.48" | 17.07" | 21.79" | 12.74" | 25.75" | 15.85" | 18.49" | 23.67" | 18.84" | 14.06" | 27.09" | 12.13" | 22.56" | 31.75" | 29.18" | 27.59" | 12.53" | 18.57" | 28.08" | 13.64" | 16.64" | 15.72" | 18.09" | 34.29" | 36.93" | 28.12" | 20.45" | 18.77" | 38.49" | 13.82" | 26.63" | 17.19" | 13.62" | 17.24" | 15.77" | 26.35" | 21.48" | 37.29" | 21.68" | 29.69" | 19.76" | 34.85" | 18.75" | 28.33" | 17.43" | 29.29" | 33.17" | 13.11" | 10.29" | 8.03" | 32.02" | 15.17" | 26.89" | 17.25" | 37.18" | 32.64" | 32.23" | 18.93" | 21.34" | 12.76" | 21.32" | 18.45" | 18.46" | 10.48" | 12.87" | 30.78" | 17.46" | 37.52" | 24.93" | 44.19" | 29.99" | 26.01" | 17.56" | 14.86" | 24.12" | 25.58" | 21.88" | 23.29" | 35.04" | 11.31" | 21.24" | 12.06" | 23.59" | 24.72" | 15.43" | 20.76" |
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