Choose from the options below and click "Plot" to create a time series graph.
Data are available from January 1895 through May 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 39.98" | 40.47" | 40.07" | 41.48" | 45.11" | 52.85" | 40.33" | 47.77" | 34.70" | 43.29" | 52.54" | 40.25" | 46.89" | 44.70" | 40.13" | 34.13" | 53.00" | 43.24" | 35.03" | 42.80" | 41.19" | 44.44" | 36.83" | 47.46" | 49.45" | 37.39" | 46.02" | 45.66" | 48.22" | 33.83" | 43.79" | 34.53" | 56.10" | 51.06" | 36.50" | 35.91" | 44.63" | 44.20" | 42.99" | 42.68" | 47.96" | 49.94" | 39.15" | 47.46" | 42.13" | 38.75" | 47.93" | 43.63" | 48.25" | 45.25" | 50.33" | 45.40" | 48.79" | 48.67" | 39.96" | 37.75" | 43.62" | 46.74" | 35.93" | 41.66" | 38.83" | 46.38" | 45.21" | 48.73" | 47.79" | 45.70" | 46.70" | 40.76" | 52.23" | 45.03" | 45.00" | 41.25" | 38.24" | 45.55" | 43.05" | 46.65" | 43.56" | 52.18" | 49.13" | 54.57" | 41.62" | 39.99" | 43.69" | 54.99" | 42.34" | 34.36" | 48.50" | 48.00" | 49.14" | 38.07" | 33.24" | 45.19" | 39.83" | 46.60" | 40.50" | 51.56" | 45.32" | 40.66" | 49.53" | 44.44" | 46.42" | 44.32" | 52.95" | 42.18" | 38.13" | 42.48" | 39.37" | 57.58" | 47.20" | 45.64" | 38.14" | 32.79" | 43.09" | 46.17" | 47.36" | 38.45" | 41.92" |
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