Choose from the options below and click "Plot" to create a time series graph.
Data are available from January 1895 through May 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 9.68" | 11.72" | 9.07" | 9.65" | 6.96" | 8.66" | 6.25" | 9.75" | 9.68" | 10.11" | 14.23" | 14.52" | 12.86" | 13.69" | 11.54" | 11.44" | 12.06" | 9.64" | 13.29" | 9.52" | 13.73" | 10.54" | 11.49" | 9.57" | 13.82" | 12.11" | 11.88" | 12.96" | 7.71" | 13.35" | 9.43" | 13.68" | 9.36" | 12.83" | 12.40" | 7.00" | 12.68" | 9.03" | 7.10" | 10.41" | 13.17" | 13.19" | 13.46" | 11.14" | 11.52" | 18.65" | 10.09" | 11.77" | 10.90" | 12.93" | 12.15" | 13.56" | 10.79" | 13.42" | 8.77" | 11.12" | 12.79" | 9.83" | 9.74" | 9.36" | 8.26" | 13.47" | 10.04" | 9.22" | 9.04" | 11.46" | 10.56" | 10.42" | 9.09" | 15.08" | 9.70" | 12.88" | 12.45" | 13.27" | 10.36" | 11.88" | 11.13" | 12.78" | 9.19" | 11.85" | 8.93" | 8.24" | 12.07" | 12.24" | 15.40" | 12.80" | 14.90" | 16.04" | 15.97" | 12.38" | 14.78" | 11.26" | 10.14" | 9.11" | 9.34" | 11.35" | 11.09" | 15.10" | 10.62" | 14.75" | 10.66" | 16.65" | 15.21" | 11.51" | 11.67" | 9.09" | 9.02" | 8.82" | 13.51" | 16.29" | 13.07" | 8.77" | 10.09" | 10.95" | 12.48" | 15.50" | 8.23" |
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