annual report 2007 - the Admiral Group plc

62 FINANCIAL STATEMENTS5. Net insurance premium revenue31 December200731 December2006£000 £000Total motor insurance premiums before co-insurance 631,251 566,608Group gross premiums written after co-insurance 260,901 196,378Outwards reinsurance premiums (119,049) (57,731)Net insurance premiums written 141,852 138,647Change in gross unearned premium provision (27,826) (8,090)Change in reinsurers’ share of unearned premium provision 28,210 14,398Net insurance premium revenue 142,236 144,955The Group’s share of the UK and Spanish private motor insurance business was underwritten byAdmiral Insurance (Gibraltar) Limited (AIGL) and Admiral Insurance Company Limited (AICL). Allcontracts are short-term in duration, lasting for 10 or 12 months.6. Other revenue31 December200731 December2006£000 £000Ancillary revenue 94,216 81,527Revenue from Confused.com 69,159 38,517Instalment income earned 5,983 5,676Revenue from Gladiator Commercial 7,520 5,901Total other revenue 176,878 131,621Ancillary revenue primarily constitutes commission from sales of insurance products thatcomplement the motor policy, but which are underwritten by external parties.