Africa Data Hub (Wazimap API) - GNI per capita by Sex data
Endpoint pattern: https://api.wazimap.com/api/v1/all_details/profile/19/geography/{CODE}/?version=world&skip-children=true&format=json
Path: profile.profile_data.Income.subcategories["Gross National Income (GNI) per capita"].indicators["GNI per capita by Sex (filterable by Year)"].data

Country: Angola (AGO)
year,Female,Male
2011,5935.50,7863.21
2013,6458.53,8526.05
2015,6626.81,8705.84
2017,5961.76,7784.20
2019,5306.09,6878.24
2021,4751.37,6196.65

Country: Rwanda (RWA)
year,Female,Male
2011,1403.79,1755.51
2013,1512.28,1879.94
2015,1662.99,2054.56
2017,1446.21,2404.08
2019,1946.70,2370.70
2021,1989.56,2439.98

Country: Gabon (GAB)
year,Female,Male
2011,8480.19,15381.64
2013,9603.39,17172.47
2015,10149.26,18015.25
2017,9979.41,17963.20
2019,9207.85,16761.48
2021,9375.90,17211.90

Country: Central African Republic (CAF)
year,Female,Male
2011,1009.39,1507.54
2013,669.28,1008.08
2015,691.32,1047.72
2017,765.00,1153.19
2019,814.96,1219.11
2021,769.84,1162.32