{"indicator": {"code": "POP.AGE.DEPEND", "name": "Ratio de dépendance", "unit": "%"}, "source": {"name": "World Bank", "producer": "Banque mondiale", "url": "https://data.worldbank.org", "license": "CC BY 4.0", "license_url": "https://datacatalog.worldbank.org/public-licenses"}, "countries": ["NGA"], "observations": [{"country": "NGA", "date": 2010, "value": 90.2349884259357}, {"country": "NGA", "date": 2011, "value": 90.3493899125583}, {"country": "NGA", "date": 2012, "value": 90.3779963318547}, {"country": "NGA", "date": 2013, "value": 90.2972750019224}, {"country": "NGA", "date": 2014, "value": 90.092940117399}, {"country": "NGA", "date": 2015, "value": 89.7206263682148}, {"country": "NGA", "date": 2016, "value": 89.0622854601106}, {"country": "NGA", "date": 2017, "value": 88.1255756898501}, {"country": "NGA", "date": 2018, "value": 87.0562828519935}, {"country": "NGA", "date": 2019, "value": 85.8794318634782}, {"country": "NGA", "date": 2020, "value": 84.5258373117038}, {"country": "NGA", "date": 2021, "value": 83.1000083234404}, {"country": "NGA", "date": 2022, "value": 81.687287853566}, {"country": "NGA", "date": 2023, "value": 80.2464063402127}, {"country": "NGA", "date": 2024, "value": 78.7709744526654}, {"country": "NGA", "date": 2025, "value": 77.2712069555623}], "provenance": {"retrieved_at": "2026-10-04T01:42:31.445772+00:00", "methodology": "Banque mondiale : Indicateurs du développement (WDI).", "attribution": "Source : Banque mondiale. Données consultées via BNTIC FasoData.", "note": "BNTIC n'est pas producteur de ces statistiques."}, "meta": {"start": 2010, "end": 2026, "cache_ttl": 43200}, "warnings": []}