ra cept ive ▁pre val ence ▁rate ▁ 3 1 % ▁( 2 0 1 6 ) ▁ ▁Net ▁migration ▁rate ▁- 4 . 7 ▁migr ant ( s )/ 1 , 0 0 0 ▁population ▁( 2 0 1 8 ▁est .) ▁Country ▁comparison ▁to ▁the ▁world : ▁ 1 9 2 nd ▁ ▁Relig ions ▁Christian ▁ 8 5 . 6 %, ▁Muslim ▁ 1 2 . 2 %, ▁Trad itional ▁ 0 . 6 %, ▁other ▁ 0 . 2 %, ▁none ▁ 1 . 5 % ▁( 2 0 0 8 ▁est .) ▁ ▁Dep endency ▁r ati os ▁total ▁dependency ▁ratio : ▁ 8 3 . 2 ▁( 2 0 1 5 ▁est .) ▁youth ▁dependency ▁ratio : ▁ 7 7 . 6 ▁( 2 0 1 5 ▁est .) ▁elder ly ▁dependency ▁ratio : ▁ 5 . 5 ▁( 2 0 1 5 ▁est .) ▁potential ▁support ▁ratio : ▁ 1 8 . 1 ▁( 2 0 1 5 ▁est .) ▁ ▁Urban ization ▁urban ▁population : ▁ 5 1 . 2 % ▁of ▁total ▁population ▁( 2 0 1 8 ) ▁rate ▁of ▁urban ization : ▁ 3 . 4 1 % ▁annual ▁rate ▁of ▁change ▁( 2 0 1 5 - 2 0 ▁est .) ▁ ▁Sex ▁ratio ▁at ▁birth : ▁ 1 . 0 3 ▁male ( s )/ f em ale ▁under ▁ 1 5 ▁years : ▁ 1 . 0 2 ▁male ( s )/ f em ale ▁ 1 5 –