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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 27.53" | 40.20" | 35.44" | 30.72" | 42.88" | 32.09" | 31.98" | 34.87" | 29.76" | 29.04" | 26.04" | 31.05" | 27.58" | 29.73" | 34.57" | 31.27" | 23.72" | 32.15" | 30.47" | 32.58" | 29.24" | 31.48" | 23.54" | 27.61" | 30.60" | 29.23" | 34.29" | 19.82" | 25.70" | 25.05" | 24.23" | 29.14" | 40.53" | 28.54" | 18.27" | 26.44" | 32.73" | 37.08" | 32.12" | 32.95" | 25.76" | 26.88" | 36.61" | 24.78" | 24.24" | 32.72" | 29.04" | 28.71" | 26.07" | 24.06" | 35.42" | 33.40" | 33.28" | 39.72" | 27.82" | 40.78" | 34.43" | 18.65" | 37.89" | 34.97" | 35.99" | 32.17" | 27.69" | 35.21" | 38.05" | 34.97" | 37.33" | 31.17" | 29.81" | 33.26" | 27.22" | 29.12" | 32.34" | 37.60" | 27.25" | 30.21" | 36.37" | 36.72" | 27.94" | 35.32" | 37.52" | 27.60" | 28.79" | 28.31" | 25.67" | 32.46" | 32.09" | 35.83" | 41.89" | 37.40" | 25.00" | 34.16" | 23.82" | 32.20" | 29.68" | 41.38" | 32.35" | 28.55" | 24.91" | 31.11" | 39.30" | 38.79" | 41.99" | 34.31" | 36.03" | 27.73" | 28.36" | 25.42" | 34.68" | 29.70" | 29.16" | 39.48" | 29.40" | 28.34" | 32.32" | 36.28" | 35.81" | 39.68" |
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