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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 25.55" | 22.21" | 22.44" | 22.50" | 22.84" | 35.88" | 17.96" | 23.57" | 28.86" | 25.03" | 31.53" | 25.27" | 24.43" | 27.31" | 16.96" | 16.97" | 20.79" | 20.58" | 24.89" | 28.29" | 26.74" | 20.61" | 13.85" | 19.28" | 38.68" | 27.75" | 24.04" | 27.12" | 29.26" | 19.46" | 20.29" | 28.34" | 23.01" | 21.86" | 24.16" | 23.06" | 21.81" | 28.58" | 20.58" | 18.28" | 30.18" | 25.53" | 19.80" | 22.18" | 19.75" | 23.49" | 38.45" | 27.51" | 18.11" | 27.04" | 27.22" | 27.75" | 19.19" | 18.55" | 31.62" | 24.35" | 19.11" | 17.00" | 20.86" | 16.07" | 21.43" | 12.87" | 32.26" | 28.75" | 26.43" | 26.39" | 24.80" | 20.95" | 15.99" | 20.48" | 22.71" | 25.78" | 22.17" | 28.83" | 25.59" | 22.96" | 24.18" | 24.10" | 33.42" | 27.97" | 24.73" | 27.32" | 20.24" | 21.49" | 28.46" | 21.28" | 31.02" | 21.27" | 22.87" | 21.14" | 26.55" | 27.95" | 25.27" | 18.88" | 24.16" | 28.21" | 30.26" | 28.74" | 24.92" | 24.85" | 24.55" | 20.81" | 30.16" | 23.56" | 20.82" | 21.27" | 23.87" | 26.33" | 22.16" | 32.62" | 20.98" | 22.23" | 34.66" | 23.17" | 25.61" | 26.99" | 10.89" | 23.24" |
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