Simplyhealth Group reported a 26% dip in post-tax profits to £6.4m for the year ended 31 December 2014 due to a decline in the number of policyholders in its PMI business.The group includes Simplyhealth’s dental capitation and pet plan business Denplan, its mobility aid business Simplyhealth Wellbeing and Simplyhealth Access – the PMI business sold…