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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 24.09" | 18.01" | 27.80" | 34.00" | 25.98" | 27.09" | 18.36" | 31.10" | 25.57" | 28.03" | 33.41" | 31.79" | 25.35" | 37.86" | 17.92" | 17.20" | 22.39" | 24.41" | 22.17" | 21.76" | 40.28" | 23.71" | 20.35" | 21.36" | 23.83" | 27.35" | 28.08" | 27.86" | 30.80" | 23.25" | 22.96" | 30.04" | 33.90" | 27.53" | 28.63" | 22.56" | 21.37" | 26.88" | 25.01" | 21.06" | 29.72" | 17.46" | 22.96" | 30.08" | 22.33" | 25.24" | 32.45" | 31.74" | 22.66" | 28.58" | 40.21" | 25.22" | 24.76" | 28.10" | 33.46" | 34.20" | 29.21" | 19.63" | 24.22" | 17.19" | 25.99" | 15.29" | 41.69" | 30.04" | 29.56" | 27.99" | 30.25" | 26.36" | 18.30" | 25.94" | 26.04" | 22.72" | 26.71" | 30.40" | 26.95" | 23.55" | 23.91" | 19.05" | 38.11" | 29.32" | 30.51" | 22.49" | 28.54" | 23.41" | 28.54" | 22.49" | 25.74" | 28.31" | 24.21" | 21.02" | 32.75" | 30.22" | 32.63" | 23.91" | 33.65" | 36.95" | 27.07" | 31.34" | 33.21" | 26.01" | 34.85" | 29.03" | 30.55" | 24.71" | 31.78" | 24.98" | 26.21" | 27.00" | 23.28" | 29.45" | 25.68" | 21.16" | 38.85" | 33.87" | 28.87" | 28.29" | 15.59" | 23.01" |
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