The information is in the table:
Quarter ending Number February 2007 200 May 2007 200 August 2007 200 November 2007 200 February 2008 200 May 2008 200 August 2008 200 November 2008 200 February 2009 200 May 2009 190 August 2009 190 Notes: 1. Caseload figures are rounded to the nearest 10. 2. Cases in payment show the number of people in receipt of an allowance, and exclude people with entitlement where the payment has been suspended and exclude people with entitlement where the payment has been suspended. Source: DWP Information Directorate Work and Pensions Longitudinal Study