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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 29.01" | 36.48" | 34.64" | 39.68" | 29.72" | 34.40" | 36.79" | 37.35" | 39.20" | 34.84" | 34.53" | 33.05" | 33.21" | 30.10" | 32.42" | 33.73" | 32.70" | 34.30" | 36.16" | 31.99" | 35.29" | 34.01" | 35.01" | 34.23" | 36.33" | 35.04" | 32.43" | 35.49" | 30.91" | 33.70" | 37.54" | 36.57" | 39.48" | 36.28" | 38.01" | 29.14" | 33.58" | 38.75" | 33.34" | 30.79" | 35.54" | 35.55" | 40.30" | 37.20" | 30.97" | 35.35" | 27.99" | 37.61" | 37.97" | 33.20" | 45.64" | 33.37" | 40.30" | 36.17" | 31.37" | 37.41" | 37.70" | 34.56" | 34.61" | 39.04" | 38.11" | 36.07" | 29.93" | 39.50" | 37.66" | 34.52" | 35.67" | 32.96" | 30.24" | 27.82" | 30.92" | 31.36" | 35.88" | 35.40" | 34.36" | 34.59" | 35.52" | 45.01" | 37.23" | 37.74" | 41.36" | 44.81" | 45.24" | 33.81" | 41.02" | 34.09" | 37.52" | 34.92" | 39.11" | 37.98" | 36.11" | 40.44" | 37.03" | 33.48" | 40.99" | 43.92" | 33.24" | 39.16" | 37.57" | 39.14" | 34.46" | 45.32" | 35.55" | 38.99" | 36.45" | 42.62" | 31.12" | 39.87" | 43.28" | 40.83" | 43.81" | 45.24" | 39.47" | 42.96" | 38.96" | 40.52" | 50.81" | 34.35" |
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