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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 42.34" | 46.78" | 44.30" | 52.46" | 49.82" | 58.15" | 42.97" | 56.98" | 40.44" | 46.48" | 54.80" | 44.85" | 54.64" | 50.39" | 43.44" | 39.70" | 57.89" | 49.08" | 40.61" | 50.68" | 49.54" | 45.81" | 41.67" | 58.61" | 51.90" | 44.59" | 52.41" | 50.75" | 47.00" | 44.37" | 49.23" | 42.60" | 54.58" | 55.86" | 48.44" | 45.74" | 44.57" | 54.88" | 46.09" | 47.94" | 54.09" | 56.22" | 47.17" | 53.18" | 45.83" | 42.82" | 50.39" | 49.05" | 49.61" | 49.40" | 58.01" | 50.20" | 59.98" | 61.40" | 43.99" | 43.34" | 50.78" | 49.12" | 43.87" | 45.13" | 42.39" | 49.55" | 59.30" | 50.45" | 56.80" | 54.12" | 48.01" | 47.60" | 57.36" | 54.17" | 48.79" | 48.74" | 43.56" | 50.51" | 50.83" | 51.90" | 52.21" | 59.22" | 51.98" | 56.50" | 50.52" | 47.89" | 55.55" | 51.97" | 53.43" | 42.31" | 52.01" | 53.83" | 59.55" | 42.92" | 43.60" | 51.76" | 43.92" | 53.51" | 51.74" | 58.88" | 47.89" | 50.74" | 56.50" | 54.08" | 54.90" | 52.64" | 60.12" | 45.76" | 44.87" | 48.45" | 41.90" | 67.92" | 48.63" | 59.92" | 43.00" | 42.79" | 48.88" | 50.20" | 57.43" | 41.92" | 49.54" |
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