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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 21.76" | 26.15" | 37.50" | 26.65" | 23.84" | 27.64" | 28.07" | 31.34" | 28.37" | 24.00" | 24.55" | 24.74" | 20.05" | 25.50" | 25.84" | 22.84" | 20.49" | 27.49" | 22.21" | 25.12" | 25.28" | 24.48" | 24.14" | 22.53" | 24.48" | 28.07" | 23.43" | 32.83" | 21.04" | 23.47" | 26.71" | 23.83" | 22.82" | 28.51" | 29.06" | 24.92" | 23.46" | 21.77" | 22.64" | 19.12" | 20.95" | 25.15" | 24.71" | 22.62" | 23.08" | 24.65" | 17.42" | 22.92" | 27.42" | 21.02" | 26.69" | 21.55" | 27.69" | 22.96" | 20.74" | 21.30" | 25.69" | 23.69" | 22.86" | 27.99" | 25.52" | 21.78" | 18.15" | 21.07" | 19.18" | 22.56" | 23.56" | 21.85" | 20.16" | 20.71" | 16.87" | 21.26" | 22.36" | 21.15" | 24.81" | 21.08" | 25.21" | 26.59" | 29.48" | 27.36" | 22.31" | 30.48" | 22.12" | 20.18" | 21.38" | 19.20" | 26.69" | 22.14" | 30.45" | 28.90" | 21.71" | 27.53" | 19.59" | 22.53" | 27.24" | 30.49" | 23.11" | 21.76" | 23.66" | 27.54" | 20.33" | 29.79" | 26.77" | 30.76" | 18.35" | 30.95" | 20.43" | 28.22" | 24.34" | 28.07" | 25.63" | 31.58" | 26.23" | 34.18" | 28.01" | 26.69" | 38.11" | 21.78" |
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