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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 21.67" | 26.26" | 25.90" | 32.12" | 23.59" | 21.87" | 13.98" | 23.60" | 24.01" | 27.38" | 24.55" | 19.61" | 23.15" | 29.54" | 28.02" | 22.94" | 17.32" | 24.76" | 18.53" | 15.10" | 26.70" | 19.51" | 20.22" | 17.74" | 21.10" | 20.30" | 23.35" | 24.82" | 22.55" | 24.17" | 18.81" | 16.83" | 32.75" | 25.92" | 29.05" | 13.30" | 18.83" | 16.35" | 20.57" | 12.26" | 30.84" | 10.48" | 20.29" | 26.61" | 23.96" | 16.93" | 15.69" | 24.79" | 25.68" | 23.85" | 34.60" | 21.12" | 25.29" | 25.36" | 23.86" | 22.73" | 28.82" | 18.62" | 16.90" | 16.32" | 21.54" | 20.08" | 30.44" | 28.98" | 18.90" | 20.08" | 28.76" | 18.61" | 19.14" | 23.34" | 22.68" | 19.46" | 23.06" | 20.56" | 23.36" | 21.76" | 16.48" | 17.57" | 32.10" | 21.47" | 21.44" | 18.97" | 21.12" | 22.80" | 24.46" | 14.27" | 29.92" | 21.02" | 21.60" | 23.32" | 26.79" | 20.66" | 19.26" | 16.45" | 20.19" | 31.37" | 19.58" | 20.72" | 29.11" | 23.13" | 27.60" | 23.44" | 22.29" | 30.09" | 22.83" | 22.11" | 25.86" | 25.64" | 21.39" | 24.83" | 16.72" | 18.54" | 21.64" | 37.25" | 27.28" | 27.93" | 27.24" | 15.56" |
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