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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 18.00" | 18.05" | 13.83" | 17.34" | 13.17" | 13.96" | 21.88" | 12.12" | 16.32" | 15.54" | 18.39" | 16.57" | 17.46" | 17.14" | 17.25" | 19.78" | 12.13" | 14.97" | 16.85" | 11.27" | 13.54" | 18.38" | 16.28" | 17.59" | 19.90" | 15.92" | 14.13" | 18.25" | 13.76" | 19.42" | 10.61" | 10.65" | 16.37" | 16.14" | 18.22" | 9.73" | 17.62" | 12.92" | 17.12" | 15.53" | 16.74" | 11.80" | 19.13" | 20.55" | 15.43" | 18.06" | 15.62" | 15.30" | 16.12" | 12.05" | 19.80" | 17.07" | 13.91" | 18.01" | 18.97" | 16.70" | 16.58" | 14.42" | 13.62" | 12.86" | 13.93" | 15.58" | 13.13" | 18.00" | 16.18" | 15.13" | 16.70" | 16.72" | 9.85" | 12.05" | 12.62" | 12.59" | 12.36" | 13.92" | 14.82" | 14.20" | 17.51" | 23.21" | 16.44" | 15.06" | 17.11" | 12.81" | 11.31" | 17.75" | 17.09" | 14.26" | 15.87" | 17.15" | 15.73" | 17.25" | 13.01" | 9.84" | 16.52" | 14.56" | 22.34" | 16.20" | 14.00" | 15.88" | 13.48" | 15.08" | 17.39" | 17.77" | 13.32" | 16.73" | 11.19" | 18.45" | 16.37" | 13.42" | 25.13" | 19.96" | 14.86" | 17.29" | 13.07" | 16.80" | 18.17" | 11.58" | 16.65" | 14.31" |
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