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.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 24.18" | 25.64" | 28.97" | 28.68" | 38.18" | 17.18" | 21.99" | 39.24" | 25.88" | 37.36" | 32.69" | 25.99" | 38.65" | 19.42" | 25.48" | 24.38" | 27.80" | 20.41" | 39.16" | 36.61" | 21.60" | 18.17" | 17.31" | 41.06" | 30.19" | 31.37" | 31.92" | 29.69" | 29.33" | 16.50" | 29.32" | 32.39" | 25.65" | 30.34" | 24.30" | 25.32" | 34.95" | 27.67" | 21.25" | 36.38" | 18.41" | 21.30" | 33.80" | 24.94" | 31.77" | 44.40" | 29.53" | 18.98" | 31.31" | 38.92" | 28.31" | 27.69" | 26.24" | 28.89" | 30.53" | 19.05" | 18.25" | 27.39" | 18.30" | 24.80" | 13.78" | 39.35" | 30.93" | 24.40" | 24.44" | 29.71" | 25.69" | 18.35" | 24.95" | 29.15" | 31.11" | 18.21" | 35.64" | 29.08" | 24.13" | 19.04" | 22.01" | 31.98" | 21.99" | 30.24" | 26.17" | 24.40" | 20.78" | 35.58" | 19.39" | 28.59" | 28.71" | 28.17" | 18.96" | 28.41" | 28.85" | 30.28" | 23.22" | 36.04" | 33.87" | 31.81" | 39.25" | 28.79" | 26.23" | 36.18" | 21.91" | 36.79" | 26.91" | 26.40" | 23.71" | 34.62" | 30.29" | 23.61" | 34.11" | 28.26" | 19.88" | 44.16" | 25.58" | 24.16" | 26.30" | 15.11" | 30.43" |
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