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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 45.54" | 41.50" | 54.66" | 49.34" | 42.83" | 43.91" | 52.50" | 51.99" | 41.64" | 37.13" | 43.05" | 40.55" | 45.66" | 39.50" | 37.28" | 34.62" | 42.58" | 46.03" | 41.13" | 32.42" | 46.04" | 45.63" | 38.94" | 45.79" | 48.52" | 48.16" | 43.17" | 47.77" | 39.74" | 41.69" | 41.40" | 37.17" | 50.37" | 47.94" | 39.57" | 35.39" | 41.59" | 44.24" | 38.94" | 40.22" | 46.82" | 40.91" | 44.53" | 51.17" | 34.55" | 35.15" | 36.74" | 38.78" | 43.52" | 41.99" | 45.99" | 42.57" | 37.31" | 39.50" | 37.99" | 43.36" | 46.30" | 46.99" | 39.61" | 51.24" | 43.16" | 32.25" | 43.91" | 35.97" | 46.08" | 41.02" | 36.92" | 42.51" | 38.28" | 29.86" | 32.98" | 37.81" | 40.01" | 45.46" | 46.32" | 38.12" | 40.00" | 47.90" | 50.89" | 40.95" | 48.60" | 44.07" | 46.10" | 40.20" | 38.85" | 36.10" | 46.68" | 43.12" | 48.19" | 39.33" | 40.56" | 43.22" | 38.47" | 37.29" | 47.78" | 50.07" | 43.81" | 40.36" | 39.76" | 38.06" | 47.68" | 50.72" | 40.96" | 45.07" | 47.96" | 40.61" | 35.41" | 40.25" | 46.73" | 47.27" | 56.90" | 64.22" | 50.85" | 53.45" | 56.43" | 47.32" | 50.20" | 42.84" |
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