Original sentence: Recent years have seen approximately one-fifth of graduating seniors recognized by the National Merit Scholarship committee; the class of 2004 included 25 National Merit semifinalists; the class of 2005 had 16; the class of 2007, 22
Edited sentence: Recent years have seen approximately one-tenth of graduating seniors recognized by the National Merit Scholarship committee; the class of 2004 included 25 National Merit semifinalists; the class of 2005 had 16; the class of 2007, 22