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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 24.52" | 26.80" | 24.10" | 25.98" | 24.95" | 25.78" | 24.11" | 28.41" | 24.03" | 26.01" | 27.33" | 28.88" | 28.05" | 25.94" | 24.23" | 23.03" | 28.86" | 25.90" | 26.22" | 27.00" | 28.51" | 24.57" | 21.62" | 27.26" | 27.81" | 26.68" | 27.45" | 25.09" | 25.69" | 21.81" | 24.78" | 29.45" | 25.70" | 27.46" | 24.56" | 21.64" | 26.71" | 27.02" | 22.17" | 26.29" | 24.20" | 25.96" | 27.19" | 24.09" | 22.93" | 25.96" | 28.56" | 26.85" | 24.98" | 26.70" | 28.10" | 26.77" | 25.45" | 26.93" | 26.39" | 26.15" | 27.48" | 24.40" | 22.75" | 23.01" | 24.28" | 25.53" | 27.62" | 25.32" | 27.25" | 25.89" | 26.54" | 23.35" | 23.86" | 26.05" | 25.00" | 24.36" | 25.68" | 27.19" | 25.75" | 25.34" | 27.13" | 31.13" | 29.04" | 28.60" | 25.69" | 22.53" | 29.45" | 28.42" | 27.83" | 22.89" | 28.19" | 31.25" | 28.15" | 25.99" | 27.44" | 28.21" | 23.65" | 25.72" | 27.09" | 28.86" | 25.97" | 29.99" | 26.37" | 29.65" | 26.61" | 30.52" | 29.45" | 27.62" | 23.32" | 24.14" | 24.76" | 27.44" | 26.60" | 29.59" | 25.40" | 27.26" | 27.04" | 27.09" | 29.62" | 27.52" | 24.78" |
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