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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 33.24" | 35.92" | 41.77" | 37.38" | 38.72" | 36.74" | 34.16" | 32.82" | 39.08" | 30.75" | 38.00" | 32.58" | 35.44" | 36.24" | 41.47" | 35.43" | 36.13" | 44.94" | 38.57" | 30.16" | 34.74" | 40.65" | 44.94" | 33.16" | 39.26" | 45.37" | 36.21" | 43.06" | 46.37" | 34.99" | 24.62" | 33.07" | 43.03" | 41.68" | 44.34" | 28.81" | 27.78" | 39.69" | 39.05" | 32.79" | 39.07" | 30.28" | 42.17" | 39.86" | 43.49" | 33.16" | 25.29" | 33.88" | 29.16" | 36.20" | 39.10" | 38.96" | 32.39" | 36.66" | 42.75" | 51.15" | 37.62" | 31.10" | 37.45" | 33.07" | 38.85" | 38.60" | 40.98" | 32.48" | 34.79" | 30.32" | 37.54" | 40.07" | 34.50" | 40.85" | 36.85" | 33.03" | 37.56" | 29.78" | 32.99" | 34.09" | 37.06" | 37.73" | 45.25" | 44.92" | 43.58" | 33.71" | 32.99" | 33.42" | 46.29" | 33.39" | 33.00" | 37.86" | 35.30" | 38.77" | 30.86" | 25.17" | 27.42" | 26.31" | 47.95" | 36.37" | 40.72" | 33.27" | 31.32" | 48.29" | 35.15" | 38.31" | 43.05" | 45.67" | 36.07" | 33.13" | 35.33" | 36.49" | 45.62" | 38.99" | 35.84" | 33.96" | 22.30" | 35.13" | 39.44" | 38.65" | 39.38" | 29.80" |
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