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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 35.51" | 43.45" | 32.80" | 52.48" | 40.17" | 43.25" | 47.63" | 45.78" | 36.28" | 36.78" | 44.08" | 42.06" | 44.62" | 40.94" | 35.70" | 37.92" | 46.61" | 45.47" | 37.19" | 41.99" | 37.89" | 45.55" | 35.03" | 45.09" | 43.49" | 41.62" | 39.83" | 40.96" | 38.90" | 43.55" | 38.49" | 39.05" | 38.77" | 52.35" | 46.10" | 36.25" | 36.09" | 47.08" | 35.46" | 40.71" | 47.85" | 45.27" | 39.03" | 41.90" | 41.04" | 39.07" | 45.64" | 44.24" | 42.53" | 37.89" | 50.31" | 42.23" | 51.94" | 47.85" | 41.77" | 39.57" | 43.83" | 39.32" | 42.09" | 31.42" | 37.91" | 39.00" | 48.18" | 41.28" | 49.67" | 43.79" | 43.31" | 42.67" | 44.64" | 49.69" | 43.60" | 38.08" | 40.55" | 39.74" | 45.69" | 42.95" | 46.84" | 47.82" | 42.06" | 47.08" | 44.89" | 43.35" | 44.10" | 41.28" | 47.92" | 32.03" | 41.18" | 49.78" | 45.55" | 34.60" | 43.18" | 47.48" | 37.41" | 38.89" | 52.20" | 42.23" | 41.01" | 52.83" | 40.91" | 50.23" | 50.62" | 44.78" | 54.31" | 37.86" | 40.67" | 39.49" | 38.93" | 49.02" | 45.06" | 50.47" | 42.72" | 40.18" | 37.62" | 41.29" | 50.81" | 36.75" | 37.95" | 43.95" |
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