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 | 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 25.41" | 32.76" | 24.61" | 37.84" | 33.61" | 37.40" | 31.36" | 41.02" | 24.73" | 29.75" | 33.05" | 29.70" | 37.42" | 32.44" | 24.21" | 25.08" | 41.92" | 34.99" | 27.25" | 35.54" | 28.63" | 30.22" | 28.21" | 39.64" | 34.19" | 31.68" | 36.02" | 34.98" | 32.24" | 33.55" | 32.41" | 26.67" | 33.78" | 40.86" | 36.57" | 31.92" | 28.83" | 39.76" | 28.97" | 31.33" | 38.31" | 38.58" | 30.37" | 32.60" | 26.63" | 23.83" | 32.29" | 33.36" | 35.04" | 31.08" | 41.35" | 34.41" | 44.18" | 40.72" | 27.86" | 29.25" | 36.96" | 33.78" | 33.20" | 29.14" | 28.76" | 35.05" | 43.07" | 34.34" | 40.62" | 36.55" | 32.17" | 33.29" | 39.13" | 36.15" | 34.23" | 29.53" | 28.76" | 33.00" | 34.69" | 34.43" | 36.87" | 43.29" | 34.55" | 39.30" | 36.67" | 34.80" | 40.26" | 37.45" | 42.80" | 26.99" | 34.80" | 42.07" | 44.00" | 24.72" | 28.97" | 38.45" | 30.31" | 33.66" | 39.56" | 40.86" | 28.86" | 39.96" | 35.72" | 35.66" | 39.22" | 37.60" | 47.32" | 30.89" | 31.19" | 31.01" | 27.10" | 46.12" | 29.38" | 39.61" | 28.23" | 29.74" | 31.88" | 35.72" | 43.35" | 28.35" | 31.68" | 35.01" |
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