Since 2003, the Government have published on an annual basis the number of special advisers in each pay band. For the most recent information I refer the hon. Member to the statement made by my right hon. Friend the Prime Minister on 22 November 2007, Official Report, 147-151WS.
Information on the numbers and costs of special advisers prior to 2003 was provided at regular intervals and this information will be available in the Library of the House.