These tables show undergraduate Stafford loan borrowing rates and average Stafford loan amounts from 1989-90 to 2007-08, using data from six separate administrations of the National Postsecondary Student Aid Study (NPSAS): NPSAS:90, NPSAS:93, NPSAS:96, NPSAS:2000, NPSAS:04, and NPSAS:08. The estimates that appear in these tables reflect the newly reweighted data for the NPSAS:96, NPSAS:2000, and NPSAS:04 surveys. The Stafford loan data for those years were reweighted so that they could be compared with NPSAS:08. This publication is the first that contains the reweighted Stafford loan estimates for those survey years. A glossary is included. (Contains 88 tables and 5 endnotes.)