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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 13.66" | 17.62" | 15.80" | 12.11" | 15.89" | 17.45" | 18.61" | 16.56" | 18.06" | 14.15" | 20.92" | 21.18" | 15.85" | 19.03" | 19.22" | 12.95" | 15.76" | 15.42" | 14.87" | 18.14" | 24.16" | 17.57" | 13.96" | 18.11" | 16.28" | 19.51" | 16.32" | 17.78" | 19.24" | 15.47" | 13.51" | 15.26" | 19.21" | 15.08" | 17.63" | 15.10" | 14.33" | 18.29" | 14.72" | 12.55" | 16.45" | 10.88" | 17.32" | 17.54" | 15.62" | 15.64" | 21.45" | 23.79" | 17.26" | 24.63" | 17.21" | 24.64" | 17.81" | 19.40" | 17.18" | 17.85" | 22.20" | 13.89" | 21.85" | 17.27" | 15.92" | 16.87" | 22.49" | 14.92" | 16.81" | 18.50" | 16.12" | 24.87" | 19.87" | 17.89" | 21.37" | 18.60" | 17.49" | 20.99" | 17.60" | 18.63" | 21.13" | 20.71" | 19.02" | 13.02" | 18.54" | 12.88" | 25.37" | 19.28" | 18.46" | 14.89" | 17.85" | 25.47" | 19.60" | 21.80" | 18.82" | 25.31" | 17.77" | 15.51" | 16.73" | 17.71" | 21.33" | 20.20" | 25.86" | 19.28" | 25.88" | 23.06" | 21.56" | 25.39" | 22.25" | 19.43" | 21.19" | 14.62" | 17.65" | 21.43" | 21.62" | 16.64" | 23.40" | 24.33" | 23.13" | 25.21" | 22.30" | 14.45" |
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