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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 12.44" | 11.58" | 12.13" | 9.38" | 9.04" | 20.12" | 12.23" | 14.14" | 11.20" | 10.47" | 18.27" | 14.68" | 21.14" | 16.61" | 23.09" | 10.13" | 14.67" | 17.41" | 15.76" | 12.47" | 10.13" | 14.22" | 13.29" | 10.85" | 20.17" | 21.51" | 18.75" | 20.61" | 25.42" | 13.90" | 7.80" | 14.37" | 17.64" | 18.78" | 17.54" | 14.78" | 11.01" | 11.45" | 19.13" | 11.95" | 20.22" | 10.39" | 11.96" | 16.54" | 15.18" | 13.88" | 9.55" | 13.41" | 15.49" | 21.88" | 15.99" | 17.83" | 20.20" | 16.32" | 18.29" | 14.97" | 14.65" | 13.84" | 21.52" | 12.82" | 16.97" | 14.33" | 14.60" | 18.54" | 14.33" | 13.03" | 17.48" | 13.58" | 9.35" | 21.68" | 10.31" | 13.24" | 13.73" | 16.35" | 16.73" | 16.41" | 15.92" | 13.83" | 27.31" | 18.09" | 22.10" | 17.64" | 16.95" | 16.35" | 22.64" | 30.10" | 13.13" | 13.17" | 27.36" | 16.46" | 10.09" | 12.62" | 12.63" | 11.80" | 16.03" | 16.72" | 31.50" | 9.96" | 16.18" | 14.88" | 20.28" | 14.26" | 19.28" | 13.45" | 14.11" | 14.50" | 14.70" | 14.95" | 14.82" | 14.70" | 14.68" | 11.25" | 7.03" | 16.15" | 20.69" | 12.71" | 14.74" | 13.14" |
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