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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 19.53" | 26.96" | 20.47" | 25.48" | 19.76" | 22.33" | 21.00" | 19.93" | 18.93" | 18.08" | 25.87" | 25.88" | 25.35" | 23.27" | 27.48" | 32.16" | 23.58" | 29.20" | 16.70" | 20.07" | 28.02" | 24.04" | 23.51" | 21.89" | 21.25" | 26.38" | 22.94" | 21.22" | 25.97" | 24.84" | 18.53" | 24.52" | 28.23" | 27.88" | 27.04" | 12.37" | 21.52" | 21.27" | 27.32" | 22.90" | 30.88" | 16.54" | 22.26" | 28.44" | 21.78" | 20.16" | 18.97" | 26.35" | 21.97" | 22.09" | 23.64" | 23.53" | 25.39" | 21.22" | 22.32" | 32.05" | 21.46" | 17.93" | 19.28" | 20.92" | 21.81" | 23.52" | 25.60" | 29.50" | 21.00" | 22.40" | 27.63" | 23.83" | 19.34" | 21.21" | 23.28" | 25.00" | 27.72" | 25.32" | 22.91" | 27.42" | 26.93" | 26.79" | 28.15" | 29.88" | 25.53" | 22.58" | 27.83" | 24.23" | 37.18" | 20.24" | 28.58" | 25.99" | 26.38" | 26.16" | 24.04" | 20.97" | 19.29" | 20.58" | 28.20" | 23.82" | 19.67" | 24.75" | 23.04" | 22.71" | 26.79" | 31.70" | 23.77" | 29.44" | 16.76" | 25.35" | 22.73" | 27.27" | 33.16" | 30.64" | 22.50" | 31.00" | 17.36" | 21.24" | 32.11" | 25.03" | 35.65" | 22.22" |
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