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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 26.95" | 22.50" | 24.32" | 15.72" | 24.58" | 30.45" | 27.87" | 21.69" | 29.94" | 18.58" | 23.44" | 24.94" | 21.08" | 24.43" | 26.87" | 22.66" | 17.24" | 32.24" | 24.87" | 17.32" | 23.15" | 18.53" | 23.27" | 21.42" | 27.18" | 27.55" | 19.60" | 29.93" | 26.57" | 26.43" | 19.81" | 23.62" | 18.24" | 27.17" | 32.58" | 20.77" | 18.63" | 24.76" | 23.15" | 25.53" | 21.29" | 29.56" | 27.83" | 21.88" | 27.10" | 22.99" | 18.82" | 25.73" | 24.13" | 28.07" | 22.11" | 27.45" | 27.79" | 27.14" | 25.13" | 19.72" | 20.15" | 23.84" | 26.61" | 18.48" | 21.85" | 22.26" | 26.44" | 27.59" | 27.65" | 26.44" | 29.72" | 26.41" | 24.80" | 29.72" | 25.02" | 27.77" | 20.53" | 19.94" | 23.68" | 23.58" | 26.04" | 27.83" | 32.54" | 25.98" | 30.76" | 24.96" | 20.35" | 26.54" | 31.12" | 28.41" | 19.04" | 29.02" | 31.95" | 27.18" | 19.58" | 16.67" | 27.45" | 19.84" | 27.51" | 24.51" | 32.37" | 25.52" | 25.36" | 27.65" | 26.09" | 26.10" | 26.38" | 31.20" | 23.06" | 20.15" | 24.14" | 21.06" | 33.06" | 21.97" | 26.98" | 19.69" | 17.22" | 22.11" | 26.23" | 24.70" | 20.69" | 22.30" |
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