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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 22.02" | 22.51" | 9.39" | 10.19" | 29.70" | 27.73" | 14.30" | 24.37" | 17.74" | 25.94" | 19.42" | 30.17" | 23.38" | 43.97" | 33.15" | 34.97" | 14.77" | 23.36" | 47.45" | 30.13" | 43.30" | 23.37" | 8.09" | 18.76" | 10.57" | 42.27" | 25.24" | 29.69" | 7.02" | 21.07" | 16.26" | 30.19" | 21.60" | 15.85" | 18.90" | 10.02" | 22.87" | 12.80" | 15.88" | 21.40" | 18.36" | 11.18" | 25.23" | 11.26" | 20.26" | 30.21" | 26.13" | 24.05" | 10.86" | 16.22" | 24.55" | 12.73" | 13.90" | 11.92" | 16.06" | 32.20" | 34.58" | 25.62" | 16.55" | 17.50" | 37.74" | 10.79" | 21.84" | 14.08" | 12.67" | 15.27" | 13.61" | 25.12" | 18.86" | 34.09" | 20.75" | 29.18" | 16.95" | 33.35" | 17.78" | 26.80" | 14.33" | 27.96" | 32.51" | 12.61" | 9.52" | 7.68" | 28.88" | 14.17" | 25.37" | 15.07" | 35.52" | 31.32" | 30.67" | 17.30" | 20.83" | 11.27" | 20.39" | 15.63" | 16.96" | 5.13" | 10.11" | 29.00" | 12.75" | 35.43" | 19.56" | 39.03" | 27.96" | 18.69" | 16.60" | 12.34" | 23.54" | 24.17" | 20.05" | 22.28" | 28.22" | 9.97" | 20.07" | 11.28" | 19.46" | 22.03" | 10.10" | 19.53" |
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