Footnotes: Ahold USA, the U.S. division of Amsterdam-based Ahold, encompasses 375 units of Stop & Shop, Quincy, Mass.; 181 units of Giant Foods of Landover, Md.; and 151 units of Giant Foods of Carlisle, Pa. Ahold USA accounts for approximately 56% of the parent company's total sales. At year's end, Ahold announced it would buy 25 Ukrop's stores and one new-store site, which would add approximately $600 million to its total.