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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 26.66" | 37.06" | 26.84" | 31.14" | 28.51" | 34.89" | 24.26" | 43.67" | 35.25" | 28.37" | 36.35" | 31.40" | 31.49" | 34.90" | 39.77" | 19.87" | 31.16" | 28.51" | 29.77" | 31.75" | 39.39" | 28.72" | 27.61" | 32.58" | 36.52" | 31.55" | 31.85" | 29.88" | 29.33" | 31.22" | 28.07" | 32.95" | 29.15" | 35.78" | 30.02" | 25.90" | 35.43" | 32.27" | 24.75" | 26.81" | 32.80" | 25.96" | 27.45" | 36.23" | 24.77" | 30.76" | 36.23" | 32.54" | 31.07" | 36.96" | 34.41" | 34.90" | 34.79" | 28.25" | 28.02" | 29.02" | 42.34" | 29.77" | 25.95" | 34.32" | 22.70" | 24.10" | 31.58" | 25.61" | 37.92" | 33.94" | 37.36" | 31.27" | 27.03" | 31.49" | 39.91" | 25.30" | 30.39" | 32.68" | 35.02" | 33.63" | 29.41" | 37.08" | 42.89" | 32.21" | 30.50" | 23.68" | 36.84" | 34.10" | 34.38" | 29.37" | 32.36" | 41.83" | 36.55" | 37.24" | 31.56" | 40.31" | 33.30" | 21.66" | 24.67" | 39.36" | 38.03" | 36.48" | 48.23" | 30.04" | 32.50" | 33.86" | 29.70" | 40.31" | 32.88" | 30.05" | 35.03" | 29.70" | 29.17" | 35.66" | 30.56" | 32.57" | 42.99" | 43.32" | 39.61" | 44.78" | 32.11" | 25.52" |
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