Even if a big trading centre, hypermarket or market, which provides a source of supply for the inhabitants of the price survey area, is situated in the suburbs or outskirts outside the administrative border it is also included in the selection.
Même si un grand centre commercial, hypermarché ou marché auprès duquel s'approvisionnent les habitants de la zone d'enquête est situé en dehors de la limite administrative, il est inclus dans l'échantillon.