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 | 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 13.22" | 15.35" | 9.15" | 17.84" | 13.73" | 14.05" | 14.64" | 18.53" | 11.09" | 13.98" | 15.29" | 8.86" | 18.26" | 11.15" | 10.97" | 8.63" | 17.70" | 13.49" | 11.86" | 17.98" | 11.63" | 13.02" | 8.86" | 17.33" | 14.46" | 15.40" | 14.61" | 12.62" | 14.35" | 14.92" | 16.89" | 12.64" | 13.20" | 13.00" | 13.24" | 12.71" | 14.54" | 17.19" | 9.23" | 11.58" | 19.40" | 17.75" | 8.90" | 15.55" | 12.07" | 12.36" | 14.79" | 12.18" | 13.68" | 12.15" | 17.16" | 12.09" | 18.77" | 20.26" | 8.70" | 9.13" | 16.35" | 15.36" | 14.94" | 12.75" | 10.92" | 11.11" | 17.27" | 12.86" | 14.90" | 13.22" | 16.96" | 15.40" | 19.72" | 14.79" | 15.03" | 12.99" | 12.77" | 13.57" | 13.86" | 13.88" | 16.00" | 19.28" | 16.77" | 16.84" | 11.65" | 13.80" | 17.33" | 18.76" | 13.24" | 9.86" | 16.96" | 18.56" | 20.45" | 12.04" | 13.79" | 20.74" | 14.25" | 11.27" | 17.49" | 15.01" | 14.53" | 19.62" | 15.43" | 15.80" | 14.98" | 15.32" | 24.63" | 13.40" | 10.70" | 11.35" | 10.08" | 17.27" | 13.84" | 13.67" | 14.34" | 14.13" | 13.20" | 12.07" | 21.80" | 10.49" | 11.93" | 15.61" |
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