Members will receive their share of the windfall, the first such payment to them since 2005, next week.
The group’s turnover for the year to March 30, 2008 was £1.142bn, up from £1.08bn in the previous year. Profit on ordinary activities before taxation was £3.1m, up from £1.9m.
Chief financial officer John Schofield said: “This is a positive performance for the year in light of the marketplace and current economic climate. We are pleased to be able to reward our members in this way for their commitment to the group over the past few years.”