Choose from the options below and click "Plot" to create a time series graph.
Data are available from January 1895 through May 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 23.20" | 18.20" | 19.71" | 21.37" | 19.58" | 32.77" | 16.37" | 21.25" | 26.55" | 22.31" | 29.07" | 22.84" | 19.39" | 25.51" | 14.63" | 15.34" | 18.82" | 17.95" | 20.79" | 25.03" | 25.29" | 18.66" | 13.50" | 15.63" | 31.69" | 24.15" | 23.50" | 25.09" | 24.65" | 18.80" | 15.82" | 24.57" | 20.08" | 19.99" | 21.76" | 17.18" | 19.88" | 27.72" | 19.43" | 17.90" | 28.11" | 23.36" | 17.11" | 21.26" | 18.19" | 21.14" | 32.58" | 24.07" | 16.95" | 25.72" | 23.76" | 24.85" | 18.10" | 17.13" | 26.31" | 23.84" | 17.84" | 16.98" | 17.24" | 13.19" | 20.07" | 11.23" | 27.58" | 25.76" | 21.70" | 21.08" | 23.24" | 18.63" | 15.02" | 19.55" | 20.78" | 24.25" | 19.94" | 27.38" | 21.44" | 20.23" | 20.18" | 20.82" | 28.83" | 23.93" | 23.17" | 23.14" | 18.60" | 20.27" | 27.25" | 20.17" | 25.03" | 19.48" | 19.48" | 15.03" | 22.00" | 22.38" | 24.50" | 17.66" | 22.79" | 25.94" | 27.79" | 27.76" | 21.77" | 19.81" | 23.40" | 19.05" | 26.72" | 18.32" | 19.51" | 17.27" | 22.12" | 20.08" | 19.44" | 28.55" | 18.87" | 18.36" | 33.50" | 21.00" | 19.96" | 26.17" | 8.68" | 22.41" |
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