Choose from the options below and click "Plot" to create a time series graph.
Data are available from January 1895 through May 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 18.57" | 20.36" | 22.72" | 23.70" | 17.93" | 19.55" | 23.44" | 23.46" | 20.23" | 19.17" | 21.47" | 20.43" | 24.28" | 15.45" | 15.98" | 16.27" | 22.93" | 21.72" | 19.91" | 16.66" | 23.48" | 18.72" | 19.70" | 20.78" | 22.22" | 23.76" | 20.02" | 16.41" | 19.21" | 17.62" | 21.38" | 23.87" | 27.80" | 19.16" | 18.35" | 13.77" | 19.76" | 22.88" | 21.91" | 20.90" | 20.09" | 20.91" | 22.04" | 24.08" | 17.62" | 19.74" | 18.72" | 24.46" | 19.66" | 20.26" | 25.92" | 19.98" | 18.62" | 20.76" | 18.86" | 23.39" | 22.93" | 19.60" | 18.50" | 24.67" | 22.65" | 21.31" | 18.96" | 21.59" | 24.74" | 19.62" | 18.99" | 21.52" | 19.14" | 16.52" | 18.14" | 19.72" | 23.09" | 19.85" | 24.97" | 22.13" | 22.41" | 24.44" | 23.28" | 20.98" | 26.72" | 23.13" | 28.73" | 18.84" | 23.66" | 18.91" | 23.04" | 17.18" | 24.95" | 19.32" | 22.73" | 23.69" | 21.61" | 21.60" | 21.88" | 27.55" | 21.69" | 23.79" | 22.17" | 21.03" | 23.20" | 28.67" | 20.82" | 16.09" | 23.17" | 20.40" | 16.10" | 21.64" | 29.94" | 27.17" | 28.71" | 26.69" | 24.25" | 26.81" | 25.90" | 24.88" | 30.24" | 24.07" |
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