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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 21.54" | 23.50" | 21.26" | 23.11" | 22.02" | 22.70" | 21.79" | 25.40" | 21.05" | 23.13" | 23.88" | 25.58" | 25.09" | 23.04" | 21.30" | 20.50" | 26.02" | 22.96" | 23.63" | 24.55" | 25.00" | 21.35" | 19.14" | 24.97" | 24.72" | 24.04" | 24.63" | 22.30" | 23.01" | 19.44" | 22.17" | 26.64" | 22.91" | 24.50" | 21.96" | 19.83" | 23.99" | 24.40" | 19.33" | 24.22" | 21.56" | 23.66" | 24.57" | 20.76" | 20.56" | 23.47" | 25.44" | 24.33" | 22.42" | 24.39" | 25.01" | 24.19" | 23.45" | 23.93" | 23.29" | 22.30" | 24.67" | 22.04" | 20.10" | 21.04" | 21.39" | 22.76" | 25.35" | 21.50" | 24.31" | 23.21" | 23.45" | 20.46" | 21.19" | 23.45" | 22.29" | 21.98" | 22.81" | 24.43" | 22.68" | 22.95" | 24.13" | 28.21" | 26.09" | 26.46" | 22.74" | 19.84" | 26.95" | 25.69" | 24.53" | 20.91" | 25.08" | 28.32" | 26.09" | 23.15" | 24.72" | 25.48" | 20.83" | 23.02" | 24.23" | 25.95" | 23.27" | 26.36" | 23.08" | 26.52" | 23.97" | 27.39" | 26.73" | 24.78" | 20.70" | 21.84" | 22.01" | 24.81" | 23.91" | 26.51" | 22.66" | 24.75" | 24.09" | 24.25" | 26.58" | 24.19" | 22.33" |
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