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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 42.16" | 40.69" | 43.13" | 42.35" | 38.27" | 44.61" | 45.64" | 44.44" | 41.82" | 36.45" | 39.12" | 40.34" | 41.29" | 37.99" | 35.79" | 36.15" | 42.43" | 38.01" | 39.00" | 39.43" | 40.55" | 39.14" | 39.59" | 40.38" | 43.79" | 37.28" | 42.08" | 34.14" | 43.83" | 33.61" | 39.32" | 39.89" | 50.16" | 37.40" | 35.62" | 37.25" | 36.91" | 45.58" | 38.58" | 39.16" | 41.33" | 44.76" | 46.49" | 36.88" | 40.26" | 33.36" | 40.99" | 40.46" | 39.62" | 46.54" | 41.85" | 41.58" | 38.44" | 41.14" | 38.50" | 45.02" | 45.42" | 41.94" | 43.15" | 41.77" | 43.02" | 33.09" | 46.14" | 36.55" | 47.67" | 38.89" | 36.45" | 36.28" | 35.38" | 32.18" | 34.40" | 40.04" | 36.64" | 41.53" | 41.75" | 41.89" | 45.66" | 49.52" | 45.98" | 44.71" | 45.81" | 43.34" | 45.37" | 46.89" | 37.64" | 39.81" | 40.85" | 42.40" | 51.20" | 36.79" | 42.87" | 42.14" | 36.15" | 44.82" | 44.27" | 44.13" | 39.90" | 42.01" | 47.50" | 32.72" | 54.18" | 43.59" | 45.65" | 40.63" | 44.58" | 36.35" | 37.56" | 48.18" | 50.94" | 42.39" | 54.40" | 44.87" | 51.80" | 46.59" | 44.70" | 57.98" | 42.24" |
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