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.
| 1895 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 20.38" | 35.15" | 29.38" | 37.72" | 29.18" | 27.28" | 26.11" | 30.55" | 32.08" | 32.03" | 35.26" | 30.79" | 38.31" | 31.05" | 37.60" | 31.82" | 35.91" | 34.43" | 39.63" | 29.92" | 34.34" | 32.14" | 34.52" | 30.79" | 34.21" | 32.37" | 33.84" | 31.99" | 30.60" | 32.36" | 29.27" | 39.12" | 33.26" | 30.06" | 38.71" | 23.84" | 31.51" | 30.26" | 33.88" | 23.30" | 35.27" | 28.36" | 40.23" | 34.78" | 34.92" | 31.47" | 27.90" | 31.27" | 33.27" | 28.14" | 39.02" | 30.22" | 36.67" | 34.74" | 32.98" | 40.41" | 31.66" | 30.89" | 25.46" | 32.59" | 32.03" | 35.85" | 32.38" | 35.41" | 34.70" | 26.66" | 34.92" | 28.68" | 24.01" | 31.70" | 33.81" | 28.70" | 28.73" | 31.71" | 30.81" | 32.37" | 27.90" | 33.80" | 34.84" | 33.78" | 37.79" | 32.11" | 32.23" | 31.92" | 39.06" | 36.22" | 35.11" | 28.97" | 32.35" | 29.98" | 29.07" | 32.61" | 26.64" | 25.60" | 38.77" | 41.62" | 26.79" | 33.69" | 32.22" | 30.01" | 34.33" | 39.91" | 33.75" | 36.50" | 28.37" | 35.91" | 32.02" | 33.49" | 40.91" | 39.44" | 35.81" | 38.63" | 34.20" | 38.13" | 32.88" | 30.90" | 46.24" | 31.33" |
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