A new report from the National Center for Education Statistics says average tuition and fees for full-time undergraduates ranged from $2,000 at public two-year institutions to $18,400 at private four-year institutions for the 2003-04 academic year. To finance their education, three-fourths of full-time undergraduates received some type of financial aid and about 50 percent took out student loans. The statistics are based on a sample of 80,000 undergraduate students.