What is the name of the BO containing
Dr de Wet 7 Poteer str
Dr Olivier 10 Kater str
Is this called SectorProfile or is this an attribute of a different BO? Without knowing your actual BO and attribute names it is difficult to advise, but here is an example from my own BO.
I have a BO called Members an an attribute called MemType and I want to count the number of members for each MemType. So I create a query to FIND ALL Members ORDER BY Members.MemType
Then in my report I create a group band which I call MembershipTypes that changes when Members.MemType changes
In the detail section I put Members.Firstname and Members.LastName and in the GROUP FOOTER for Membership Types I put <<COUNT Members>>
This works for me. Hope it helps