1 -- 1997 estimate by the U.S. Bureau of the Census; 2 -- percent of persons 17 years old who have completed high school; 3 -- percent of people 25 years old and over who have completed four years of high school or more; 4 -- as of July 1, 1997; 5 -- 1996
*Today figures are the most recent numbers available
Sources: 1998 Statistical Abstract', Historical Statistics of the U.S', and U.S. Bureau of the Census'; Research by James Grant of The News-Sentinel