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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 24.23" | 31.95" | 35.54" | 24.54" | 30.18" | 31.89" | 21.21" | 23.99" | 33.03" | 24.53" | 29.81" | 23.96" | 29.47" | 28.61" | 35.94" | 28.72" | 27.93" | 37.72" | 26.36" | 22.66" | 22.32" | 28.22" | 34.36" | 23.05" | 28.94" | 32.17" | 27.60" | 35.71" | 34.28" | 26.64" | 19.56" | 21.39" | 35.58" | 33.89" | 37.15" | 21.23" | 21.24" | 27.27" | 31.20" | 25.32" | 30.08" | 23.50" | 22.64" | 30.35" | 34.00" | 26.74" | 18.26" | 23.25" | 24.76" | 29.19" | 31.99" | 27.41" | 21.25" | 30.31" | 29.72" | 31.70" | 27.65" | 20.90" | 31.02" | 20.66" | 34.12" | 30.70" | 28.92" | 26.52" | 25.72" | 22.98" | 32.11" | 30.64" | 28.80" | 30.89" | 30.69" | 23.09" | 30.90" | 23.54" | 24.14" | 27.47" | 27.76" | 28.46" | 38.58" | 29.74" | 34.62" | 26.68" | 26.20" | 22.97" | 34.72" | 26.78" | 27.59" | 25.70" | 30.44" | 34.00" | 22.05" | 20.68" | 21.93" | 18.59" | 38.20" | 29.25" | 34.24" | 25.78" | 23.57" | 38.73" | 25.57" | 29.44" | 34.23" | 37.51" | 26.25" | 26.80" | 27.35" | 26.70" | 38.89" | 31.44" | 25.56" | 23.30" | 16.93" | 28.26" | 31.44" | 28.57" | 34.71" | 21.16" |
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