Population or demography is the study of population number, composition, change, and quality as they influence the economic, political, and social system. 
O je gbigba bi eto iseIyawolaaye ni Jemani, botilẹjẹpe ko faramọ pipe be.itọkasi awon Ọjọ́ìbí ni 1883awon ojoalaisi ni 1969awon amòye ara Jemani.. 