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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15.18" | 18.83" | 16.32" | 15.49" | 16.32" | 16.45" | 17.13" | 17.40" | 17.87" | 15.31" | 19.12" | 20.32" | 16.83" | 20.06" | 19.52" | 14.26" | 17.44" | 18.48" | 16.44" | 16.71" | 22.86" | 17.77" | 14.61" | 16.82" | 14.74" | 17.05" | 16.12" | 16.63" | 20.24" | 15.42" | 16.42" | 15.66" | 20.69" | 16.05" | 15.84" | 16.03" | 13.28" | 16.66" | 14.86" | 11.49" | 15.06" | 11.63" | 15.49" | 16.97" | 13.38" | 15.66" | 20.04" | 18.93" | 15.58" | 19.83" | 16.72" | 18.98" | 17.56" | 17.01" | 16.12" | 17.13" | 19.14" | 12.95" | 17.33" | 15.38" | 15.64" | 13.87" | 18.84" | 15.34" | 15.98" | 14.27" | 14.92" | 19.35" | 16.75" | 17.32" | 19.47" | 14.97" | 16.89" | 17.92" | 15.91" | 17.01" | 18.00" | 17.57" | 17.83" | 13.81" | 18.70" | 13.62" | 19.55" | 18.63" | 14.90" | 15.45" | 16.93" | 20.95" | 17.34" | 16.99" | 16.32" | 20.21" | 16.48" | 13.02" | 15.49" | 15.29" | 18.25" | 16.96" | 22.29" | 16.32" | 20.42" | 18.33" | 17.80" | 20.24" | 17.58" | 16.13" | 15.92" | 13.74" | 15.42" | 16.91" | 18.87" | 15.21" | 18.82" | 19.19" | 18.25" | 20.92" | 19.88" | 12.51" |
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