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 | 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 13.70" | 13.08" | 16.80" | 21.41" | 13.94" | 11.06" | 19.17" | 24.29" | 12.04" | 14.22" | 13.99" | 16.65" | 19.63" | 13.10" | 13.72" | 13.79" | 16.57" | 12.38" | 16.34" | 18.96" | 13.85" | 13.32" | 13.99" | 13.33" | 16.28" | 13.54" | 15.50" | 13.65" | 16.48" | 10.96" | 17.97" | 16.87" | 18.12" | 11.03" | 15.66" | 8.09" | 12.82" | 21.08" | 12.15" | 15.08" | 19.85" | 20.79" | 16.89" | 16.64" | 13.55" | 14.50" | 11.70" | 17.79" | 15.70" | 16.96" | 15.26" | 12.48" | 16.54" | 23.54" | 13.02" | 14.67" | 19.28" | 17.84" | 11.89" | 13.24" | 12.57" | 17.70" | 20.34" | 11.54" | 18.58" | 15.26" | 16.55" | 14.70" | 16.81" | 13.84" | 11.56" | 12.56" | 12.66" | 13.27" | 14.72" | 19.06" | 20.78" | 22.66" | 15.39" | 15.12" | 15.61" | 14.28" | 23.55" | 22.63" | 14.20" | 12.43" | 14.21" | 13.28" | 22.90" | 14.13" | 17.07" | 20.65" | 15.12" | 14.10" | 15.20" | 16.76" | 12.97" | 15.68" | 21.03" | 12.57" | 21.67" | 19.23" | 23.19" | 12.95" | 13.61" | 10.61" | 6.89" | 23.87" | 19.02" | 15.25" | 19.62" | 18.16" | 16.21" | 13.10" | 24.27" | 14.77" | 15.11" | 17.72" |
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