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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 23.08" | 27.63" | 23.79" | 21.90" | 29.08" | 22.93" | 23.14" | 25.56" | 20.72" | 21.42" | 19.10" | 19.01" | 21.83" | 21.93" | 21.30" | 19.47" | 16.90" | 23.24" | 20.71" | 22.99" | 18.73" | 25.81" | 19.74" | 19.47" | 21.67" | 20.31" | 23.52" | 15.18" | 20.09" | 15.39" | 19.22" | 19.25" | 26.95" | 20.65" | 15.65" | 19.87" | 24.55" | 24.73" | 24.39" | 20.10" | 21.12" | 25.58" | 25.09" | 17.45" | 18.88" | 23.32" | 21.66" | 17.90" | 19.63" | 17.60" | 25.48" | 23.95" | 21.31" | 30.31" | 17.73" | 27.52" | 23.63" | 16.69" | 29.73" | 26.63" | 21.52" | 24.57" | 21.20" | 23.20" | 28.06" | 23.68" | 29.37" | 19.97" | 19.43" | 25.47" | 20.36" | 20.32" | 22.03" | 27.46" | 22.84" | 22.02" | 28.15" | 32.23" | 15.75" | 28.84" | 24.66" | 24.38" | 19.50" | 23.55" | 19.61" | 24.21" | 23.34" | 27.29" | 30.04" | 25.79" | 15.32" | 24.89" | 20.61" | 22.02" | 21.06" | 27.01" | 23.95" | 20.76" | 21.33" | 19.62" | 24.79" | 27.18" | 31.82" | 22.79" | 25.39" | 22.35" | 17.51" | 21.38" | 23.00" | 22.69" | 20.11" | 25.24" | 21.72" | 19.84" | 20.25" | 27.00" | 27.33" | 27.21" |
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