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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 25.00" | 27.19" | 24.92" | 26.05" | 25.95" | 25.22" | 24.72" | 29.01" | 24.02" | 27.17" | 27.63" | 28.27" | 28.50" | 26.32" | 23.97" | 23.25" | 28.67" | 25.19" | 26.97" | 28.03" | 27.94" | 23.74" | 21.25" | 28.59" | 27.79" | 26.45" | 27.55" | 25.99" | 25.31" | 22.74" | 25.47" | 29.44" | 27.36" | 26.61" | 24.28" | 22.70" | 26.93" | 25.84" | 21.14" | 27.80" | 23.24" | 27.19" | 28.41" | 24.39" | 23.32" | 27.28" | 28.70" | 26.98" | 25.57" | 27.89" | 27.87" | 27.42" | 27.24" | 28.01" | 27.40" | 25.96" | 26.59" | 24.60" | 22.22" | 23.89" | 23.63" | 26.49" | 30.14" | 24.65" | 26.93" | 26.40" | 26.93" | 23.96" | 24.22" | 26.51" | 24.12" | 25.26" | 26.17" | 27.87" | 25.46" | 26.05" | 27.38" | 31.59" | 28.82" | 29.24" | 25.33" | 22.76" | 28.64" | 28.76" | 25.82" | 24.81" | 28.50" | 30.75" | 29.44" | 26.09" | 27.54" | 28.28" | 22.38" | 27.09" | 26.89" | 28.82" | 27.66" | 30.29" | 26.38" | 29.80" | 27.28" | 30.82" | 30.18" | 28.29" | 24.20" | 25.79" | 24.74" | 28.54" | 27.92" | 29.34" | 24.67" | 27.79" | 27.32" | 27.19" | 30.66" | 26.67" | 24.68" |
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