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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 29.59" | 31.14" | 11.63" | 13.95" | 33.47" | 33.25" | 20.13" | 29.74" | 20.08" | 30.17" | 24.60" | 41.02" | 28.13" | 48.65" | 34.38" | 36.64" | 19.83" | 33.06" | 52.98" | 36.38" | 53.82" | 26.17" | 11.96" | 20.88" | 12.46" | 47.62" | 30.55" | 33.44" | 15.41" | 22.53" | 25.06" | 38.69" | 27.28" | 19.79" | 25.13" | 15.14" | 26.91" | 18.96" | 19.21" | 24.95" | 26.91" | 16.73" | 29.65" | 14.93" | 22.91" | 33.06" | 34.52" | 34.23" | 15.58" | 21.63" | 28.81" | 14.05" | 17.92" | 24.91" | 18.36" | 36.90" | 38.76" | 29.53" | 24.92" | 22.68" | 43.03" | 15.92" | 29.28" | 22.64" | 14.73" | 19.45" | 17.58" | 27.30" | 29.58" | 38.11" | 27.50" | 31.17" | 26.39" | 35.28" | 21.67" | 29.34" | 18.92" | 32.18" | 33.69" | 15.97" | 13.47" | 9.94" | 32.42" | 20.89" | 29.38" | 19.49" | 38.57" | 39.14" | 37.48" | 20.95" | 21.71" | 14.25" | 21.84" | 21.67" | 20.09" | 11.67" | 14.34" | 32.59" | 19.91" | 39.55" | 29.55" | 48.23" | 31.48" | 29.68" | 19.67" | 17.44" | 26.62" | 26.80" | 28.71" | 24.35" | 37.48" | 19.08" | 23.51" | 12.47" | 24.74" | 30.50" | 17.29" | 25.42" |
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