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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 33.80" | 41.64" | 48.34" | 44.80" | 42.35" | 37.91" | 44.59" | 50.08" | 47.05" | 39.64" | 45.15" | 53.70" | 50.77" | 41.02" | 39.96" | 39.28" | 43.40" | 42.80" | 39.41" | 40.03" | 39.01" | 39.99" | 45.92" | 33.28" | 54.91" | 50.12" | 36.88" | 42.51" | 42.75" | 50.38" | 33.27" | 45.10" | 43.70" | 49.62" | 41.70" | 26.73" | 44.70" | 47.76" | 50.62" | 57.14" | 56.84" | 52.08" | 45.94" | 50.19" | 45.38" | 43.19" | 33.66" | 44.94" | 38.77" | 45.46" | 53.20" | 43.42" | 42.45" | 60.15" | 37.61" | 39.95" | 47.46" | 49.68" | 47.10" | 36.63" | 42.67" | 47.49" | 40.67" | 53.98" | 44.25" | 45.87" | 48.27" | 37.16" | 39.11" | 34.43" | 31.60" | 38.01" | 49.60" | 31.05" | 47.22" | 42.05" | 50.23" | 53.99" | 45.90" | 41.57" | 55.61" | 36.48" | 45.99" | 48.54" | 51.83" | 37.79" | 41.92" | 39.22" | 55.89" | 44.00" | 42.72" | 40.54" | 34.18" | 38.78" | 59.85" | 46.55" | 39.53" | 43.20" | 48.58" | 47.90" | 41.49" | 57.77" | 46.11" | 42.18" | 44.37" | 48.05" | 39.73" | 48.73" | 59.96" | 47.14" | 48.51" | 47.03" | 37.49" | 44.15" | 57.30" | 45.36" | 46.52" | 35.44" |
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