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.
| 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 | 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 21.61" | 24.69" | 20.93" | 23.32" | 22.47" | 23.11" | 21.10" | 25.51" | 21.44" | 22.24" | 24.23" | 25.42" | 23.92" | 22.89" | 21.56" | 21.07" | 25.92" | 23.41" | 23.78" | 23.10" | 25.60" | 22.00" | 19.09" | 24.04" | 25.07" | 24.22" | 24.32" | 21.94" | 23.22" | 19.93" | 22.62" | 26.50" | 23.41" | 23.90" | 21.40" | 19.36" | 24.36" | 23.69" | 20.39" | 22.57" | 21.95" | 23.67" | 24.00" | 21.92" | 20.74" | 23.34" | 25.48" | 23.47" | 22.00" | 23.90" | 24.38" | 23.66" | 22.77" | 24.05" | 23.52" | 23.80" | 24.84" | 21.24" | 20.11" | 20.10" | 21.75" | 21.38" | 25.20" | 22.17" | 24.43" | 23.07" | 23.94" | 21.05" | 21.66" | 23.39" | 22.79" | 21.47" | 22.41" | 24.55" | 23.18" | 22.50" | 24.22" | 28.14" | 26.00" | 25.36" | 22.79" | 19.95" | 25.88" | 25.23" | 24.82" | 19.42" | 24.80" | 27.84" | 25.08" | 23.46" | 24.55" | 25.05" | 21.64" | 22.50" | 23.30" | 25.20" | 23.69" | 27.10" | 24.00" | 25.62" | 23.39" | 27.75" | 26.89" | 24.75" | 20.70" | 21.38" | 22.12" | 24.19" | 23.28" | 26.89" | 23.13" | 24.51" | 24.07" | 23.78" | 26.38" | 24.27" | 22.32" | 22.38" |
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