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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 30.10" | 27.85" | 29.82" | 24.17" | 26.73" | 37.05" | 31.03" | 23.34" | 36.00" | 22.62" | 26.56" | 28.95" | 30.22" | 30.90" | 40.85" | 28.50" | 28.00" | 42.26" | 28.56" | 22.30" | 25.21" | 33.24" | 31.60" | 22.70" | 35.22" | 38.29" | 27.34" | 34.12" | 37.51" | 26.34" | 16.50" | 25.55" | 28.23" | 37.55" | 44.00" | 18.19" | 21.00" | 35.63" | 31.89" | 40.39" | 35.28" | 28.94" | 32.98" | 39.39" | 37.36" | 37.64" | 33.29" | 30.73" | 32.38" | 38.61" | 33.34" | 37.29" | 31.29" | 40.42" | 32.44" | 32.97" | 34.28" | 28.72" | 29.96" | 19.51" | 34.75" | 34.88" | 32.99" | 30.84" | 30.43" | 26.23" | 46.32" | 29.16" | 34.85" | 39.21" | 32.10" | 38.97" | 36.02" | 27.26" | 29.77" | 33.77" | 41.32" | 27.75" | 38.35" | 35.97" | 41.83" | 37.83" | 36.81" | 28.38" | 48.75" | 38.11" | 29.92" | 37.64" | 39.05" | 35.72" | 30.15" | 18.20" | 29.59" | 22.67" | 41.49" | 32.94" | 36.49" | 31.04" | 25.53" | 39.55" | 29.73" | 32.76" | 36.23" | 34.94" | 30.11" | 26.49" | 39.63" | 24.75" | 50.28" | 30.11" | 38.76" | 27.13" | 14.70" | 37.73" | 35.50" | 31.99" | 30.59" | 29.37" |
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