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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 22.59" | 27.65" | 30.87" | 29.98" | 25.53" | 28.76" | 31.12" | 30.50" | 31.61" | 27.82" | 25.81" | 28.32" | 23.69" | 27.83" | 27.55" | 25.58" | 24.89" | 27.81" | 25.44" | 26.61" | 29.40" | 27.74" | 29.05" | 24.87" | 28.31" | 28.75" | 23.89" | 30.52" | 24.48" | 27.62" | 24.96" | 24.56" | 26.07" | 30.60" | 27.87" | 23.29" | 27.43" | 26.16" | 29.22" | 24.30" | 26.79" | 30.11" | 31.05" | 28.46" | 25.72" | 28.47" | 22.17" | 28.13" | 26.96" | 24.04" | 31.06" | 26.37" | 30.65" | 29.33" | 24.98" | 27.78" | 29.71" | 29.59" | 29.95" | 28.97" | 27.46" | 29.14" | 20.94" | 31.11" | 26.27" | 28.05" | 28.83" | 24.06" | 22.68" | 24.35" | 20.70" | 21.87" | 27.06" | 23.46" | 26.13" | 25.32" | 26.93" | 33.07" | 30.96" | 28.51" | 29.53" | 31.02" | 27.27" | 28.13" | 32.75" | 24.45" | 26.33" | 27.24" | 31.81" | 33.18" | 23.74" | 28.89" | 25.29" | 24.81" | 30.58" | 31.73" | 25.16" | 26.79" | 26.70" | 32.42" | 21.83" | 34.09" | 26.43" | 33.36" | 25.65" | 32.20" | 23.82" | 26.79" | 30.09" | 30.34" | 29.42" | 32.32" | 28.90" | 33.12" | 31.32" | 28.49" | 37.05" | 25.72" |
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