"Supermarket News" ranked 7-Eleven's North American operations Number 11 in the 2007 "Top 75 North American Food Retailers," based on the 2006 fiscal year estimated sales of US$15 billion. Based on the 2005 revenue, 7-Eleven is the twenty-fourth largest retailer in the United States. , 8,144 7-Eleven franchised units exist across the United States. Franchise fees range between US$10,000 – $1,000,000 and the ongoing royalty rate varies. 7-Eleven America has its headquarters in the One Arts Plaza building in Downtown Dallas, Texas. Small-size Slurpees are free on "7-Eleven Day", on July 11.