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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2.45" | 2.99" | 2.75" | 2.00" | 2.82" | 1.99" | 2.19" | 1.89" | 3.06" | 2.35" | 3.12" | 4.35" | 2.53" | 4.42" | 3.24" | 3.04" | 3.16" | 6.00" | 3.78" | 2.78" | 5.21" | 3.27" | 2.47" | 4.02" | 4.12" | 3.40" | 1.64" | 2.56" | 7.07" | 3.88" | 4.57" | 3.71" | 4.84" | 2.64" | 4.01" | 5.91" | 3.19" | 2.54" | 2.61" | 2.57" | 1.93" | 2.91" | 2.38" | 3.44" | 2.44" | 3.68" | 5.18" | 3.44" | 2.51" | 1.61" | 3.96" | 4.77" | 3.42" | 2.33" | 3.22" | 3.12" | 3.80" | 1.62" | 2.16" | 2.20" | 2.53" | 1.65" | 3.22" | 1.34" | 3.26" | 2.45" | 4.47" | 2.18" | 3.26" | 1.32" | 3.26" | 3.60" | 2.83" | 3.59" | 2.13" | 2.68" | 4.05" | 3.96" | 4.21" | 2.68" | 2.15" | 2.67" | 3.05" | 2.47" | 3.08" | 3.29" | 2.67" | 5.10" | 3.80" | 3.03" | 2.75" | 4.23" | 2.29" | 1.62" | 3.38" | 2.86" | 2.83" | 2.00" | 3.31" | 3.81" | 3.37" | 2.82" | 4.43" | 5.00" | 2.67" | 2.68" | 2.21" | 3.33" | 2.74" | 4.08" | 3.42" | 3.60" | 3.90" | 3.25" | 3.36" | 2.10" | 2.77" | 1.52" |
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