This is the number, as at the relevant date, of entities (persons or organisations) recorded in the register of members (or other equivalent mechanism) of the reporting entity.For example:Companies limited by shares - the number of registered shareholders;Unit trusts - the number of unitholders;Partnerships - the number of partners;Discretionary trusts - the number of beneficiaries;Associations - the number of registered members. 

This is the number of members in the statutory fund at the end of the period. A member with more than one policy is considered as one member.
This would be based on the number of lives insured for group policies, joint-life individual policies, or policies that allow the insurance of auxiliary lives.