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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 24.80" | 23.34" | 24.91" | 22.76" | 25.44" | 22.96" | 24.39" | 26.41" | 23.56" | 27.34" | 26.99" | 26.15" | 26.48" | 25.40" | 21.73" | 23.25" | 27.05" | 24.18" | 24.32" | 28.17" | 25.89" | 22.81" | 21.81" | 25.67" | 25.17" | 24.81" | 25.01" | 26.44" | 23.40" | 21.89" | 23.98" | 26.23" | 25.34" | 24.73" | 21.41" | 20.59" | 25.68" | 24.53" | 21.26" | 25.43" | 22.43" | 25.56" | 26.36" | 23.21" | 24.10" | 26.67" | 26.15" | 24.02" | 25.80" | 27.63" | 25.59" | 23.69" | 24.31" | 26.11" | 26.49" | 24.70" | 23.64" | 24.25" | 21.95" | 23.01" | 21.43" | 26.85" | 26.76" | 23.88" | 24.02" | 25.51" | 24.69" | 21.46" | 24.01" | 26.62" | 22.83" | 24.32" | 25.07" | 25.49" | 24.44" | 23.73" | 25.27" | 28.70" | 26.34" | 27.96" | 22.79" | 23.57" | 25.67" | 28.29" | 24.21" | 23.44" | 26.52" | 27.81" | 25.17" | 23.83" | 24.46" | 24.04" | 21.97" | 25.24" | 25.39" | 27.22" | 25.95" | 28.51" | 24.23" | 26.91" | 26.42" | 27.31" | 27.91" | 25.25" | 22.84" | 23.66" | 23.12" | 26.35" | 26.89" | 25.26" | 23.84" | 24.60" | 26.94" | 25.75" | 27.61" | 24.67" | 22.64" |
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