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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 26.88" | 27.99" | 25.51" | 25.82" | 27.28" | 25.32" | 24.30" | 23.93" | 28.00" | 19.95" | 22.87" | 27.90" | 23.22" | 24.21" | 27.60" | 23.66" | 24.95" | 24.61" | 24.73" | 22.07" | 28.29" | 21.78" | 23.10" | 24.04" | 19.79" | 29.80" | 22.39" | 21.98" | 17.05" | 26.51" | 19.40" | 29.45" | 28.01" | 18.31" | 19.88" | 19.04" | 26.52" | 24.90" | 25.19" | 25.36" | 21.76" | 19.52" | 28.16" | 19.56" | 24.45" | 23.41" | 25.99" | 27.23" | 17.68" | 23.53" | 27.15" | 23.41" | 28.62" | 24.66" | 27.11" | 29.49" | 25.13" | 24.64" | 25.82" | 21.42" | 31.72" | 25.37" | 25.65" | 25.76" | 26.42" | 27.94" | 24.14" | 25.58" | 23.89" | 27.71" | 21.11" | 25.88" | 22.99" | 29.60" | 24.50" | 29.15" | 29.96" | 19.52" | 33.90" | 24.05" | 27.27" | 15.34" | 28.97" | 21.09" | 25.84" | 24.47" | 30.23" | 30.38" | 29.11" | 21.17" | 25.85" | 22.37" | 19.69" | 23.81" | 23.30" | 24.87" | 18.77" | 24.55" | 17.61" | 27.95" | 33.16" | 33.31" | 28.27" | 29.63" | 24.71" | 16.19" | 24.33" | 23.48" | 23.81" | 23.45" | 28.60" | 24.35" | 23.50" | 22.66" | 24.60" | 30.29" | 24.05" |
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