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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 46.38" | 44.37" | 43.40" | 51.93" | 40.95" | 47.93" | 38.49" | 55.68" | 40.94" | 44.14" | 63.12" | 54.91" | 50.93" | 47.44" | 40.92" | 45.25" | 55.94" | 49.27" | 48.11" | 44.51" | 53.91" | 40.06" | 36.81" | 49.73" | 55.86" | 53.60" | 51.48" | 46.21" | 53.25" | 36.24" | 46.89" | 52.47" | 57.50" | 56.73" | 48.79" | 41.49" | 56.75" | 44.71" | 48.17" | 47.68" | 45.67" | 47.40" | 56.04" | 49.58" | 39.69" | 47.28" | 47.33" | 47.30" | 43.24" | 60.07" | 64.44" | 46.30" | 49.98" | 54.42" | 58.78" | 52.51" | 52.79" | 43.87" | 40.30" | 39.12" | 44.11" | 43.09" | 66.11" | 55.18" | 47.38" | 49.03" | 55.84" | 38.87" | 36.81" | 48.38" | 40.88" | 41.00" | 53.77" | 58.46" | 43.09" | 47.51" | 40.56" | 59.08" | 62.27" | 65.75" | 46.78" | 41.41" | 44.70" | 52.85" | 55.55" | 37.84" | 44.89" | 54.08" | 49.95" | 61.72" | 42.36" | 52.42" | 51.20" | 54.42" | 54.40" | 56.94" | 59.79" | 47.95" | 55.53" | 49.77" | 39.91" | 58.39" | 53.31" | 44.99" | 39.53" | 51.93" | 57.31" | 44.89" | 47.86" | 56.91" | 36.61" | 48.27" | 51.27" | 55.98" | 72.40" | 36.90" | 60.01" | 41.23" |
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