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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 40.82" | 36.54" | 51.04" | 55.73" | 40.83" | 37.80" | 55.35" | 54.78" | 50.18" | 43.91" | 40.63" | 43.79" | 51.86" | 41.25" | 37.36" | 38.59" | 52.14" | 42.51" | 44.15" | 40.54" | 41.95" | 37.14" | 38.17" | 39.88" | 48.70" | 48.33" | 37.43" | 41.49" | 38.21" | 41.87" | 39.70" | 40.34" | 50.32" | 46.27" | 39.36" | 34.16" | 40.61" | 44.26" | 47.65" | 45.35" | 49.07" | 43.75" | 43.77" | 58.93" | 38.78" | 47.06" | 39.70" | 46.03" | 42.15" | 43.95" | 50.94" | 40.19" | 48.26" | 54.17" | 37.82" | 45.94" | 48.99" | 56.37" | 41.44" | 42.00" | 45.06" | 43.30" | 43.03" | 47.29" | 46.00" | 48.36" | 43.83" | 41.83" | 36.19" | 35.37" | 29.41" | 40.66" | 45.68" | 38.77" | 46.97" | 42.89" | 51.43" | 58.24" | 50.80" | 46.10" | 55.88" | 38.20" | 52.33" | 53.14" | 48.82" | 34.36" | 42.29" | 44.12" | 57.05" | 42.77" | 43.62" | 45.97" | 45.19" | 40.73" | 54.98" | 51.21" | 39.16" | 47.60" | 48.72" | 38.70" | 45.82" | 57.96" | 47.53" | 42.54" | 42.90" | 47.50" | 30.94" | 51.31" | 53.88" | 51.27" | 45.89" | 54.32" | 49.02" | 42.47" | 66.30" | 39.98" | 57.11" | 47.14" |
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