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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 32.36" | 29.95" | 29.95" | 23.08" | 30.66" | 35.41" | 32.90" | 25.39" | 34.31" | 23.65" | 29.82" | 33.29" | 26.36" | 30.39" | 32.93" | 28.75" | 21.96" | 37.24" | 29.89" | 22.15" | 27.98" | 30.09" | 29.55" | 26.16" | 35.28" | 33.39" | 25.94" | 35.99" | 32.00" | 32.52" | 24.04" | 30.08" | 23.98" | 32.97" | 37.82" | 24.87" | 24.35" | 28.72" | 29.81" | 31.41" | 28.45" | 35.37" | 33.66" | 29.61" | 33.42" | 29.40" | 27.06" | 30.84" | 30.59" | 33.99" | 30.37" | 34.41" | 32.75" | 34.08" | 31.60" | 27.58" | 25.63" | 27.50" | 31.81" | 22.97" | 28.16" | 28.17" | 30.69" | 34.04" | 34.73" | 33.17" | 34.34" | 31.33" | 29.92" | 37.58" | 31.59" | 32.53" | 27.25" | 25.92" | 29.82" | 29.05" | 33.04" | 32.51" | 37.58" | 31.23" | 39.10" | 29.07" | 24.44" | 32.14" | 37.33" | 32.56" | 24.04" | 35.40" | 34.89" | 35.00" | 26.54" | 20.79" | 31.35" | 25.16" | 34.62" | 29.11" | 39.59" | 30.22" | 28.99" | 35.72" | 30.80" | 31.74" | 32.44" | 36.26" | 27.80" | 24.77" | 30.17" | 26.29" | 40.80" | 27.46" | 34.47" | 24.00" | 22.31" | 27.40" | 30.96" | 28.95" | 25.82" | 27.65" |
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