How many Muslims live in sub-Saharan Africa?

Pew reports:

Sub-Saharan Africa, which includes 50 countries and territories, has about 241 million Muslims, which is about 15% of the world Muslim population. Nigeria has the largest Muslim population in Sub-Saharan Africa, with about 78 million Muslims (about 50% of Nigeria's total population). Almost one-in-three Muslims (about 32%) in Sub-Saharan Africa live in Nigeria. Western Africa is the only area in Sub-Saharan Africa with a Muslim majority. In contrast, the southern part of Africa has the smallest Muslim population.