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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 25.14" | 33.36" | 30.01" | 36.16" | 27.68" | 29.37" | 34.23" | 36.04" | 37.27" | 33.94" | 32.48" | 30.93" | 29.82" | 28.78" | 30.56" | 30.81" | 29.98" | 31.14" | 32.45" | 29.75" | 33.19" | 31.56" | 34.07" | 32.13" | 33.33" | 31.23" | 27.54" | 34.16" | 28.11" | 31.62" | 34.16" | 32.75" | 32.59" | 33.56" | 35.20" | 26.96" | 31.34" | 34.15" | 30.91" | 28.07" | 32.37" | 32.76" | 37.28" | 34.50" | 29.43" | 31.87" | 25.79" | 34.04" | 34.68" | 30.16" | 40.86" | 31.01" | 36.26" | 31.83" | 28.72" | 32.47" | 33.53" | 31.88" | 32.43" | 34.65" | 35.23" | 33.31" | 26.94" | 36.33" | 32.87" | 32.68" | 32.59" | 30.57" | 24.79" | 25.51" | 27.49" | 27.93" | 31.97" | 30.09" | 29.76" | 30.94" | 32.13" | 38.87" | 34.02" | 33.66" | 37.97" | 43.26" | 40.12" | 32.03" | 37.17" | 30.79" | 35.17" | 30.22" | 34.24" | 35.02" | 30.08" | 36.59" | 33.99" | 29.02" | 36.97" | 40.81" | 30.15" | 34.67" | 33.51" | 34.86" | 30.16" | 40.81" | 30.90" | 37.24" | 33.33" | 39.98" | 28.87" | 36.06" | 38.86" | 37.65" | 38.91" | 41.84" | 35.30" | 40.22" | 36.84" | 37.70" | 47.96" | 33.18" |
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