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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 39.58" | 36.88" | 45.60" | 45.85" | 39.00" | 35.68" | 48.33" | 47.26" | 39.14" | 37.83" | 39.38" | 39.52" | 44.70" | 37.37" | 35.80" | 35.61" | 40.52" | 42.93" | 37.22" | 36.06" | 40.29" | 39.67" | 39.23" | 40.15" | 42.20" | 42.48" | 37.86" | 39.45" | 36.56" | 39.80" | 38.68" | 38.94" | 45.31" | 41.32" | 40.53" | 29.91" | 41.77" | 39.98" | 40.65" | 39.83" | 44.10" | 40.41" | 43.26" | 44.88" | 35.73" | 39.20" | 35.93" | 41.58" | 40.09" | 39.86" | 46.30" | 40.01" | 40.87" | 43.52" | 38.59" | 43.46" | 43.98" | 44.08" | 39.05" | 45.74" | 41.45" | 37.53" | 39.69" | 41.78" | 43.08" | 39.79" | 39.67" | 38.45" | 36.01" | 32.48" | 33.33" | 34.08" | 40.84" | 38.38" | 42.81" | 42.57" | 40.63" | 49.21" | 48.08" | 42.73" | 47.62" | 43.54" | 49.27" | 42.50" | 41.94" | 36.22" | 43.37" | 39.38" | 49.88" | 41.49" | 41.25" | 40.71" | 39.98" | 37.23" | 46.20" | 49.25" | 38.26" | 42.67" | 44.85" | 40.17" | 41.83" | 52.46" | 42.49" | 42.52" | 40.03" | 43.97" | 33.03" | 44.13" | 48.18" | 49.84" | 47.92" | 52.08" | 48.20" | 45.08" | 50.74" | 44.92" | 52.23" | 43.13" |
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