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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 18.81" | 27.40" | 14.06" | 21.96" | 20.60" | 26.92" | 16.37" | 34.64" | 28.58" | 19.49" | 25.55" | 20.50" | 24.65" | 26.92" | 23.06" | 15.48" | 19.56" | 20.47" | 20.30" | 24.34" | 29.93" | 18.83" | 19.30" | 24.34" | 22.95" | 19.77" | 24.17" | 18.56" | 21.88" | 22.77" | 21.80" | 26.05" | 19.17" | 25.36" | 19.09" | 17.75" | 22.44" | 23.29" | 17.83" | 17.88" | 23.50" | 18.68" | 17.98" | 24.79" | 17.41" | 20.11" | 26.92" | 24.36" | 23.94" | 25.01" | 21.84" | 24.99" | 23.47" | 16.35" | 19.10" | 20.85" | 27.74" | 18.70" | 14.72" | 25.44" | 15.28" | 17.59" | 22.53" | 19.82" | 26.24" | 24.13" | 24.67" | 24.16" | 18.37" | 21.86" | 26.87" | 18.35" | 22.12" | 23.19" | 26.01" | 25.76" | 18.61" | 26.86" | 26.86" | 22.68" | 17.55" | 13.54" | 26.57" | 23.87" | 22.96" | 23.29" | 23.42" | 27.99" | 22.66" | 24.00" | 21.08" | 30.10" | 23.14" | 14.19" | 19.56" | 27.74" | 20.93" | 22.00" | 37.54" | 21.54" | 21.69" | 25.05" | 20.61" | 27.64" | 21.54" | 21.03" | 23.88" | 23.10" | 18.53" | 24.96" | 19.97" | 19.67" | 29.86" | 30.04" | 27.40" | 33.94" | 20.26" | 15.29" |
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