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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 19.29" | 27.78" | 19.23" | 26.15" | 19.84" | 22.64" | 18.70" | 24.69" | 21.92" | 22.67" | 27.00" | 22.77" | 25.36" | 23.21" | 26.39" | 25.42" | 24.01" | 26.46" | 18.11" | 19.11" | 29.19" | 22.91" | 23.54" | 23.38" | 22.22" | 24.77" | 25.13" | 21.41" | 24.21" | 25.58" | 20.03" | 26.11" | 28.95" | 26.55" | 27.54" | 14.79" | 22.35" | 20.86" | 24.75" | 20.56" | 26.83" | 17.36" | 22.86" | 25.58" | 22.24" | 20.33" | 20.93" | 25.08" | 24.77" | 22.68" | 28.99" | 22.11" | 25.76" | 21.79" | 22.74" | 26.91" | 24.20" | 19.67" | 17.27" | 20.24" | 21.38" | 22.11" | 27.26" | 29.08" | 21.33" | 21.10" | 27.03" | 20.92" | 18.62" | 22.29" | 25.45" | 22.40" | 24.09" | 23.73" | 24.58" | 28.09" | 21.58" | 25.65" | 27.52" | 26.64" | 24.71" | 19.53" | 25.85" | 23.20" | 28.50" | 21.63" | 29.31" | 24.07" | 23.61" | 23.42" | 22.46" | 23.69" | 20.55" | 17.25" | 26.45" | 26.17" | 20.08" | 23.65" | 29.20" | 23.67" | 26.08" | 29.65" | 22.93" | 28.04" | 19.95" | 25.20" | 24.38" | 25.76" | 30.28" | 26.93" | 21.69" | 25.21" | 19.91" | 27.67" | 29.03" | 27.22" | 30.39" | 19.60" |
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