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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 21.78" | 30.89" | 26.90" | 23.72" | 28.60" | 28.20" | 23.96" | 27.61" | 31.57" | 24.94" | 32.31" | 29.95" | 22.76" | 28.85" | 28.17" | 14.65" | 28.63" | 22.34" | 25.26" | 28.10" | 28.05" | 27.74" | 21.19" | 24.26" | 27.08" | 25.29" | 22.36" | 22.16" | 19.69" | 24.81" | 23.31" | 24.47" | 24.31" | 25.27" | 21.03" | 22.46" | 22.40" | 21.60" | 20.75" | 19.97" | 25.50" | 18.08" | 25.71" | 26.98" | 21.72" | 25.04" | 29.04" | 28.05" | 26.69" | 30.06" | 26.71" | 28.00" | 25.19" | 22.72" | 26.72" | 25.85" | 31.00" | 22.52" | 30.52" | 24.43" | 24.92" | 24.38" | 29.48" | 20.26" | 26.23" | 24.24" | 22.99" | 28.25" | 24.06" | 26.39" | 33.27" | 24.73" | 21.21" | 33.22" | 25.16" | 27.36" | 29.03" | 27.43" | 28.03" | 23.14" | 28.09" | 15.75" | 33.92" | 25.73" | 28.57" | 21.73" | 28.15" | 29.90" | 29.73" | 28.38" | 30.77" | 31.68" | 22.20" | 22.20" | 22.68" | 26.51" | 32.54" | 25.60" | 31.64" | 28.48" | 29.95" | 28.04" | 25.75" | 29.33" | 29.93" | 28.23" | 29.81" | 29.02" | 22.26" | 30.63" | 32.32" | 23.49" | 30.15" | 27.86" | 26.94" | 34.40" | 24.84" | 25.91" |
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