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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 21.28" | 21.97" | 20.06" | 19.88" | 31.40" | 26.73" | 19.18" | 30.40" | 28.32" | 29.34" | 23.77" | 25.31" | 28.03" | 17.50" | 22.06" | 17.43" | 15.90" | 18.90" | 36.08" | 28.62" | 21.17" | 16.77" | 13.85" | 22.44" | 34.02" | 25.16" | 28.44" | 22.77" | 28.33" | 15.81" | 24.11" | 21.66" | 19.48" | 23.34" | 18.17" | 31.37" | 23.99" | 23.94" | 22.27" | 20.66" | 30.37" | 21.92" | 18.07" | 16.08" | 21.60" | 29.96" | 22.31" | 25.32" | 23.22" | 23.21" | 22.25" | 23.80" | 18.02" | 24.26" | 25.50" | 16.59" | 17.11" | 10.56" | 19.57" | 14.61" | 16.93" | 22.80" | 27.23" | 28.98" | 21.11" | 26.92" | 16.88" | 16.52" | 19.24" | 22.17" | 25.85" | 15.23" | 37.59" | 23.35" | 25.57" | 13.77" | 39.12" | 23.81" | 34.17" | 25.57" | 25.53" | 34.49" | 13.44" | 28.01" | 20.59" | 26.93" | 29.17" | 15.94" | 19.22" | 25.56" | 24.13" | 29.60" | 18.64" | 16.27" | 19.85" | 24.94" | 36.09" | 22.67" | 21.33" | 21.81" | 17.20" | 25.02" | 20.84" | 24.64" | 21.67" | 19.98" | 17.55" | 34.53" | 38.13" | 27.34" | 13.16" | 31.53" | 27.92" | 19.91" | 29.98" | 20.37" | 17.17" |
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