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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 22.05" | 19.50" | 22.48" | 18.96" | 16.97" | 31.15" | 20.09" | 17.42" | 26.15" | 15.31" | 34.07" | 17.81" | 28.86" | 24.14" | 21.42" | 16.75" | 17.93" | 29.29" | 25.51" | 21.32" | 22.31" | 21.40" | 19.82" | 17.83" | 30.27" | 22.41" | 20.22" | 31.91" | 30.24" | 23.95" | 15.62" | 32.32" | 27.98" | 21.02" | 28.21" | 22.21" | 18.80" | 27.79" | 27.26" | 26.45" | 28.22" | 20.05" | 22.89" | 21.97" | 23.29" | 24.54" | 22.57" | 23.04" | 19.36" | 30.33" | 25.70" | 36.35" | 30.18" | 23.44" | 28.03" | 30.55" | 20.86" | 25.82" | 36.16" | 17.72" | 26.10" | 22.43" | 25.26" | 24.82" | 24.31" | 18.28" | 28.69" | 17.79" | 12.96" | 25.54" | 18.95" | 32.37" | 21.60" | 24.34" | 25.25" | 18.33" | 17.16" | 24.31" | 32.42" | 31.07" | 30.69" | 19.10" | 22.42" | 21.24" | 37.52" | 35.94" | 17.06" | 20.63" | 33.60" | 22.69" | 20.78" | 15.51" | 24.68" | 23.74" | 25.48" | 32.61" | 46.41" | 27.16" | 28.83" | 24.74" | 33.19" | 16.36" | 33.29" | 27.59" | 22.85" | 17.92" | 22.38" | 19.07" | 17.72" | 30.88" | 20.61" | 19.48" | 19.96" | 23.08" | 21.26" | 16.73" | 14.60" | 27.03" |
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