{"version": 1, "genere_le": "2026-09-07", "total_dans_le_jeu": 199, "dans_cet_echantillon": 60, "note": "Echantillon. Le jeu complet et le flux des changements sont decrits dans manifest.json.", "entites": [{"nom": "Charleroi", "code_nis": "52011", "province": "Hainaut", "perimetres": 60, "surface_ha": 582.5, "plus_ancien_classement": "1971"}, {"nom": "La Louvière", "code_nis": "58001", "province": "Hainaut", "perimetres": 53, "surface_ha": 416.7, "plus_ancien_classement": "1970"}, {"nom": "Liège", "code_nis": "62063", "province": "Liège", "perimetres": 41, "surface_ha": 193.9, "plus_ancien_classement": "1969"}, {"nom": "Mons", "code_nis": "53053", "province": "Hainaut", "perimetres": 35, "surface_ha": 277.6, "plus_ancien_classement": "1969"}, {"nom": "Quaregnon", "code_nis": "53065", "province": "Hainaut", "perimetres": 31, "surface_ha": 133.6, "plus_ancien_classement": "1971"}, {"nom": "Seraing", "code_nis": "62096", "province": "Liège", "perimetres": 28, "surface_ha": 155.3, "plus_ancien_classement": "1976"}, {"nom": "Namur", "code_nis": "92094", "province": "Namur", "perimetres": 24, "surface_ha": 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{"nom": "Morlanwelz", "code_nis": "58004", "province": "Hainaut", "perimetres": 12, "surface_ha": 167.3, "plus_ancien_classement": "1972"}, {"nom": "Boussu", "code_nis": "53014", "province": "Hainaut", "perimetres": 12, "surface_ha": 141.8, "plus_ancien_classement": "1969"}, {"nom": "Flémalle", "code_nis": "62120", "province": "Liège", "perimetres": 12, "surface_ha": 106.2, "plus_ancien_classement": "1971"}, {"nom": "Herstal", "code_nis": "62051", "province": "Liège", "perimetres": 12, "surface_ha": 77.8, "plus_ancien_classement": "1970"}, {"nom": "Leuze-en-Hainaut", "code_nis": "57094", "province": "Hainaut", "perimetres": 12, "surface_ha": 13.9, "plus_ancien_classement": "1980"}, {"nom": "Péruwelz", "code_nis": "57064", "province": "Hainaut", "perimetres": 11, "surface_ha": 11.1, "plus_ancien_classement": "1980"}, {"nom": "Tubize", "code_nis": "25105", "province": "Brabant wallon", "perimetres": 10, "surface_ha": 140.4, "plus_ancien_classement": "1987"}, {"nom": "Dison", "code_nis": 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