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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 36.94" | 50.72" | 41.02" | 46.43" | 36.48" | 39.71" | 33.73" | 48.26" | 39.77" | 34.85" | 45.76" | 45.51" | 46.87" | 41.10" | 41.01" | 42.76" | 45.59" | 45.65" | 35.64" | 33.81" | 52.38" | 42.85" | 36.48" | 39.79" | 48.27" | 40.78" | 47.92" | 39.37" | 42.87" | 39.51" | 38.92" | 53.34" | 44.85" | 47.98" | 44.51" | 28.80" | 44.14" | 43.69" | 36.62" | 40.72" | 43.22" | 41.97" | 41.45" | 46.88" | 35.28" | 31.58" | 40.69" | 44.36" | 42.75" | 41.96" | 44.85" | 42.31" | 42.64" | 45.73" | 50.37" | 46.62" | 46.87" | 36.49" | 30.96" | 40.83" | 39.10" | 41.22" | 44.47" | 43.78" | 39.19" | 40.30" | 46.81" | 37.06" | 37.27" | 39.05" | 38.96" | 38.10" | 42.85" | 42.22" | 42.39" | 40.87" | 42.61" | 50.39" | 49.46" | 49.53" | 41.66" | 35.46" | 44.42" | 47.73" | 43.95" | 35.51" | 46.99" | 46.14" | 45.58" | 44.90" | 42.46" | 42.21" | 38.67" | 40.77" | 44.98" | 52.02" | 37.94" | 45.12" | 52.39" | 38.94" | 44.70" | 50.09" | 44.53" | 46.66" | 34.65" | 39.85" | 48.17" | 42.73" | 49.38" | 50.99" | 37.98" | 45.31" | 45.75" | 45.85" | 48.19" | 50.15" | 45.79" | 42.46" |
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