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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 23.73" | 28.69" | 15.96" | 33.95" | 23.01" | 25.25" | 11.58" | 28.78" | 26.27" | 26.37" | 33.91" | 21.32" | 24.82" | 24.60" | 25.07" | 27.99" | 20.94" | 22.65" | 19.19" | 21.60" | 34.88" | 22.01" | 19.85" | 22.35" | 28.55" | 23.39" | 26.63" | 17.95" | 25.55" | 26.97" | 26.03" | 28.85" | 30.68" | 29.17" | 28.94" | 17.71" | 22.75" | 21.60" | 23.54" | 20.02" | 30.26" | 18.86" | 20.16" | 20.33" | 20.34" | 16.68" | 29.43" | 27.91" | 28.45" | 21.02" | 30.15" | 23.34" | 24.56" | 23.46" | 29.98" | 24.31" | 32.28" | 16.06" | 11.56" | 21.74" | 22.36" | 19.09" | 26.27" | 28.53" | 24.27" | 20.96" | 29.34" | 22.23" | 18.82" | 19.60" | 27.78" | 19.72" | 27.04" | 23.08" | 28.00" | 30.31" | 19.17" | 21.00" | 28.15" | 24.46" | 21.55" | 17.42" | 28.78" | 21.83" | 21.53" | 17.40" | 32.68" | 28.02" | 19.96" | 24.21" | 27.85" | 30.55" | 21.20" | 17.81" | 22.26" | 27.21" | 20.85" | 20.83" | 38.04" | 18.59" | 26.52" | 26.91" | 22.14" | 29.81" | 17.98" | 23.78" | 27.65" | 25.30" | 24.01" | 26.55" | 20.59" | 21.41" | 23.03" | 32.49" | 34.44" | 29.75" | 20.64" | 16.27" |
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