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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 25.71" | 26.29" | 25.49" | 18.45" | 24.12" | 38.58" | 24.61" | 21.60" | 31.49" | 18.52" | 26.72" | 25.94" | 27.52" | 27.25" | 38.37" | 25.87" | 23.71" | 35.04" | 26.45" | 17.69" | 21.67" | 31.00" | 26.88" | 19.88" | 31.30" | 32.11" | 23.32" | 31.60" | 32.87" | 24.51" | 15.82" | 24.64" | 23.71" | 35.72" | 39.62" | 17.10" | 21.62" | 27.72" | 32.12" | 30.57" | 30.72" | 28.64" | 29.87" | 32.88" | 35.31" | 34.85" | 23.46" | 28.67" | 28.27" | 37.70" | 32.86" | 37.93" | 30.51" | 33.65" | 34.63" | 30.94" | 27.55" | 23.88" | 32.86" | 18.04" | 31.89" | 31.56" | 28.96" | 31.51" | 29.57" | 26.18" | 41.73" | 27.51" | 27.97" | 37.60" | 28.24" | 28.57" | 26.00" | 21.45" | 28.58" | 29.36" | 36.13" | 25.68" | 40.74" | 28.74" | 42.62" | 31.85" | 27.39" | 28.17" | 39.31" | 37.79" | 27.13" | 32.95" | 39.49" | 28.84" | 27.42" | 20.99" | 27.26" | 21.92" | 38.94" | 33.44" | 39.04" | 26.65" | 24.09" | 37.72" | 27.97" | 30.68" | 36.00" | 30.83" | 28.48" | 19.61" | 34.24" | 24.84" | 43.57" | 29.02" | 38.19" | 21.34" | 17.43" | 26.84" | 34.91" | 25.56" | 27.50" | 25.83" |
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