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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 33.24" | 41.07" | 32.64" | 51.97" | 41.64" | 39.45" | 43.69" | 44.62" | 31.78" | 35.67" | 41.67" | 40.18" | 43.61" | 40.42" | 31.69" | 34.36" | 48.57" | 40.79" | 35.41" | 39.76" | 35.76" | 43.12" | 36.71" | 43.44" | 44.10" | 40.46" | 40.07" | 39.35" | 38.84" | 40.16" | 37.49" | 36.76" | 40.32" | 49.52" | 42.47" | 34.72" | 35.97" | 46.18" | 35.72" | 39.20" | 49.68" | 47.07" | 39.21" | 39.76" | 38.35" | 36.93" | 41.02" | 41.05" | 43.14" | 39.46" | 48.49" | 42.24" | 50.27" | 49.30" | 38.19" | 39.76" | 41.87" | 41.30" | 39.75" | 32.96" | 37.69" | 39.52" | 47.59" | 40.38" | 49.15" | 44.52" | 41.72" | 38.73" | 44.85" | 48.57" | 39.70" | 35.42" | 38.53" | 38.42" | 44.03" | 41.83" | 44.83" | 46.94" | 39.70" | 45.85" | 41.54" | 40.31" | 44.38" | 42.91" | 48.73" | 30.52" | 42.34" | 49.31" | 44.88" | 33.39" | 39.62" | 46.49" | 35.65" | 40.17" | 46.54" | 44.38" | 38.72" | 49.33" | 40.63" | 45.93" | 46.97" | 45.60" | 53.43" | 37.33" | 38.25" | 36.82" | 34.49" | 49.52" | 40.18" | 48.43" | 38.43" | 37.69" | 37.48" | 41.90" | 48.75" | 36.08" | 36.72" | 43.17" |
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