Bupa Group revenues have exceeded £9bn for the first time in the provident association’s history after customer numbers increased by 57%.Total revenues hit £9.1bn last year (2012: £8.3bn) with gross insurance premiums rising to £6.8bn (2012: £6.7bn). Premiums ceded to reinsurers were listed at £37m (2012: £29m) leading to net insurance premiums earned of £6.8bn…