I assumed those boards that got accepted might have none present MS,
From the list of the approved sources from their respective boards, some already have their existing MS, but base on what i sense, they have been having increasing activities form the local board and taking Nigeria for instance, they already have two existing MS, but still yet, this couldn't serve round as the local board is one of the fast growing boards in the localized section.
its interesting to see which local board don't have assigned source yet.
Except a non active board with lesser activities and those not approved local board status already, but the most active ones have been considered already, you can as well see the order of their increasing activities quoted below.