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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 34.67" | 24.99" | 23.96" | 26.89" | 29.68" | 47.41" | 23.49" | 39.07" | 36.88" | 30.83" | 42.77" | 31.42" | 37.23" | 32.59" | 23.64" | 22.18" | 20.27" | 24.38" | 37.15" | 41.67" | 25.22" | 23.79" | 15.31" | 26.92" | 49.94" | 33.11" | 25.65" | 37.04" | 35.57" | 23.92" | 26.45" | 31.10" | 22.39" | 26.14" | 30.22" | 32.66" | 20.91" | 25.07" | 23.41" | 23.45" | 38.48" | 38.96" | 20.33" | 24.27" | 19.41" | 35.61" | 41.72" | 35.26" | 24.51" | 29.81" | 29.35" | 41.10" | 21.51" | 22.09" | 34.06" | 21.09" | 25.91" | 27.56" | 25.79" | 15.03" | 22.34" | 14.39" | 42.04" | 32.52" | 33.81" | 38.65" | 31.39" | 21.44" | 17.81" | 24.87" | 31.00" | 25.99" | 34.00" | 37.43" | 31.24" | 30.78" | 31.02" | 33.06" | 45.81" | 33.10" | 31.72" | 41.76" | 25.72" | 29.70" | 34.79" | 26.56" | 41.78" | 25.00" | 34.11" | 22.31" | 34.69" | 31.60" | 34.08" | 18.62" | 20.75" | 27.35" | 32.19" | 40.05" | 32.52" | 34.07" | 28.69" | 22.53" | 42.20" | 40.74" | 22.21" | 31.58" | 32.56" | 38.27" | 28.01" | 44.87" | 22.33" | 25.41" | 41.75" | 18.04" | 28.61" | 32.56" | 10.19" | 26.17" |
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