The numbers of asylum seekers in receipt of support broken down by nationality are published annually in the Asylum Statistics United Kingdom bulletins. The latest bulletin for 2006 and historic publications are available from the Library of the House and from the Home Office Research, Development and Statistics website at:
http://www.homeoffice.gov.uk/rds/immigration1.html
Information on decision outcomes relating specifically to supported asylum seekers is not available and could be produced only at disproportionate cost.