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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 39.77" | 48.39" | 36.38" | 57.54" | 43.06" | 39.50" | 59.70" | 47.43" | 38.17" | 41.98" | 51.57" | 50.28" | 50.89" | 50.94" | 42.39" | 44.31" | 43.42" | 44.36" | 44.64" | 45.56" | 44.81" | 51.21" | 41.64" | 46.82" | 45.08" | 48.33" | 44.31" | 47.65" | 40.60" | 49.89" | 37.32" | 35.93" | 42.46" | 57.58" | 50.93" | 35.61" | 42.88" | 46.79" | 37.35" | 49.92" | 50.95" | 50.46" | 39.74" | 52.06" | 40.46" | 39.36" | 38.68" | 49.60" | 45.82" | 40.52" | 53.87" | 45.57" | 52.98" | 48.71" | 48.74" | 43.73" | 44.21" | 44.52" | 43.35" | 35.49" | 47.37" | 45.10" | 51.32" | 44.51" | 54.25" | 44.04" | 47.93" | 48.01" | 44.05" | 50.11" | 43.11" | 41.11" | 45.73" | 40.88" | 45.86" | 44.59" | 51.41" | 53.21" | 45.65" | 53.16" | 46.74" | 47.70" | 48.53" | 45.82" | 51.96" | 34.97" | 46.71" | 50.69" | 45.85" | 42.23" | 42.50" | 46.96" | 36.81" | 41.79" | 56.04" | 45.68" | 41.43" | 54.54" | 42.70" | 46.92" | 52.58" | 53.25" | 49.87" | 41.11" | 48.54" | 40.03" | 37.79" | 48.79" | 52.25" | 49.53" | 44.33" | 51.49" | 33.79" | 41.60" | 55.45" | 42.50" | 42.44" | 46.54" |
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