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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 11.88" | 13.96" | 13.00" | 12.32" | 10.02" | 11.14" | 10.37" | 10.07" | 9.41" | 14.22" | 16.36" | 16.81" | 13.96" | 14.34" | 14.26" | 11.55" | 13.75" | 14.74" | 13.15" | 16.76" | 16.18" | 14.43" | 11.63" | 13.30" | 17.32" | 13.26" | 15.80" | 11.78" | 15.68" | 10.29" | 13.98" | 15.07" | 14.37" | 12.40" | 14.07" | 14.80" | 15.30" | 12.45" | 11.83" | 10.38" | 13.57" | 13.74" | 12.75" | 14.55" | 11.82" | 15.14" | 21.03" | 13.04" | 12.55" | 12.90" | 11.75" | 13.67" | 13.17" | 12.61" | 13.23" | 9.78" | 13.44" | 11.73" | 10.26" | 11.85" | 11.45" | 8.30" | 16.10" | 13.24" | 13.60" | 10.65" | 14.81" | 10.44" | 11.05" | 12.28" | 16.52" | 10.73" | 14.50" | 12.66" | 13.70" | 12.21" | 12.29" | 15.80" | 12.53" | 11.79" | 12.27" | 10.69" | 13.88" | 16.31" | 15.10" | 10.70" | 15.47" | 15.97" | 16.12" | 17.40" | 15.52" | 17.39" | 13.88" | 13.62" | 9.92" | 14.36" | 15.76" | 18.79" | 12.21" | 14.62" | 13.16" | 14.13" | 16.25" | 13.61" | 14.14" | 13.73" | 10.56" | 10.69" | 11.08" | 18.14" | 11.54" | 14.95" | 14.29" | 11.97" | 13.47" | 13.18" | 11.71" | 9.98" |
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