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.
| 1895 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 21.10" | 15.36" | 16.41" | 22.03" | 18.49" | 27.29" | 16.15" | 21.35" | 18.71" | 22.30" | 26.08" | 22.36" | 20.74" | 25.70" | 18.40" | 17.38" | 19.55" | 19.20" | 19.48" | 21.20" | 24.98" | 18.87" | 15.74" | 16.84" | 24.11" | 22.76" | 21.05" | 20.44" | 23.51" | 15.97" | 16.93" | 19.96" | 22.46" | 22.07" | 19.54" | 16.60" | 15.33" | 20.16" | 19.09" | 14.97" | 24.23" | 19.07" | 16.22" | 19.23" | 16.76" | 22.02" | 26.03" | 24.53" | 17.54" | 21.72" | 23.32" | 21.02" | 18.19" | 17.39" | 22.01" | 24.63" | 20.43" | 15.20" | 18.09" | 14.48" | 20.09" | 12.14" | 27.38" | 25.02" | 22.15" | 19.03" | 22.10" | 19.65" | 15.65" | 19.49" | 19.61" | 20.69" | 22.28" | 22.86" | 19.25" | 19.00" | 20.73" | 19.68" | 25.26" | 23.52" | 23.26" | 20.14" | 20.10" | 19.09" | 24.07" | 18.37" | 21.67" | 19.91" | 18.85" | 15.85" | 20.00" | 22.38" | 20.65" | 17.05" | 23.00" | 20.41" | 25.64" | 22.29" | 21.68" | 19.33" | 22.82" | 22.52" | 22.69" | 15.73" | 19.21" | 15.86" | 19.21" | 19.24" | 20.12" | 23.62" | 18.27" | 16.83" | 25.47" | 23.05" | 22.95" | 20.65" | 13.56" | 17.60" |
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