Sixty-three percent of all undergraduates received some form of financial aid during the 2003-04 academic year, according to a report from the National Center for Education Statistics. The number is up from 55 percent in 1999-2000. The report was based on a sample of 80,000 undergraduates and 11,000 graduate and professional-school students who were enrolled at colleges across the country that are qualified to participate in federal financial-aid programs.