Each year TSA published data in the form of a Rent factfile, a paper that compares actual net rents to target rents as at 31 March of two consecutive years. The Rent factfile was produced on behalf of TSA by Dataspring. This paper compares 31 March 2007 and 31 March 2008 and examines the extent to which actual rents have moved towards target rents. It also describes the annual change in gross rents for the period 1 April 2007 to 31 March 2008.