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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 21.61" | 15.13" | 20.63" | 24.26" | 23.48" | 24.03" | 15.29" | 25.92" | 18.10" | 24.96" | 25.72" | 27.34" | 20.63" | 32.00" | 14.95" | 15.00" | 18.22" | 18.40" | 16.28" | 18.31" | 33.09" | 16.81" | 18.04" | 17.50" | 19.15" | 22.09" | 21.25" | 20.62" | 25.11" | 18.18" | 20.25" | 24.57" | 27.43" | 22.90" | 21.44" | 18.16" | 15.06" | 18.65" | 20.00" | 16.22" | 23.31" | 15.99" | 17.72" | 19.51" | 16.02" | 21.84" | 27.11" | 28.34" | 19.94" | 21.11" | 29.92" | 17.75" | 22.33" | 20.96" | 23.61" | 29.61" | 23.29" | 14.53" | 18.76" | 14.79" | 20.90" | 12.03" | 34.61" | 23.51" | 25.76" | 22.57" | 24.66" | 22.78" | 15.37" | 20.93" | 21.78" | 18.48" | 24.33" | 23.44" | 20.20" | 19.48" | 20.44" | 17.45" | 26.44" | 24.44" | 22.59" | 19.41" | 22.80" | 17.81" | 21.74" | 17.52" | 21.29" | 22.68" | 17.53" | 13.99" | 22.46" | 27.14" | 23.62" | 17.47" | 25.98" | 24.19" | 23.27" | 26.86" | 25.15" | 20.56" | 29.15" | 26.05" | 24.62" | 14.12" | 24.50" | 18.07" | 18.40" | 20.84" | 19.43" | 21.40" | 19.24" | 16.74" | 31.35" | 26.07" | 24.65" | 22.14" | 13.07" | 14.67" |
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