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 | 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 36.69" | 48.83" | 42.45" | 47.15" | 36.50" | 38.77" | 34.64" | 46.64" | 40.08" | 35.40" | 46.86" | 44.48" | 44.99" | 40.94" | 42.40" | 40.93" | 45.11" | 48.76" | 35.31" | 35.71" | 51.31" | 40.85" | 36.22" | 41.63" | 45.79" | 41.71" | 47.22" | 41.21" | 43.31" | 39.44" | 39.05" | 49.47" | 47.37" | 47.12" | 47.58" | 27.40" | 44.71" | 42.58" | 38.44" | 39.73" | 43.18" | 40.81" | 42.47" | 45.08" | 35.69" | 33.04" | 41.06" | 43.82" | 40.47" | 42.51" | 47.62" | 39.22" | 44.74" | 46.58" | 49.22" | 46.78" | 46.93" | 36.35" | 30.76" | 41.02" | 38.80" | 39.04" | 46.58" | 44.44" | 39.89" | 38.50" | 48.72" | 37.07" | 33.98" | 40.22" | 38.53" | 39.20" | 43.07" | 41.48" | 40.70" | 45.27" | 38.85" | 50.12" | 51.54" | 49.34" | 43.42" | 33.91" | 44.58" | 45.79" | 46.49" | 33.90" | 48.60" | 42.62" | 47.00" | 47.45" | 42.68" | 41.63" | 38.90" | 40.25" | 44.91" | 51.06" | 39.24" | 43.65" | 50.20" | 41.34" | 43.88" | 52.30" | 41.53" | 47.70" | 35.81" | 40.59" | 46.21" | 43.59" | 49.83" | 50.42" | 37.83" | 45.66" | 44.68" | 45.75" | 50.03" | 44.78" | 51.62" | 39.28" |
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