1.The types of non-exhaustiveness referred to in Article 4(a) shall be those listed in Annex I to this Regulation. These types are pertinent to the situation where the source data are obtained from surveys or administrative collections of producers. Therefore, these types shall be first and foremost applied in the analysis of exhaustiveness in the context of GDP compilation by the production approach. They can also be applied to the analysis by the income and expenditure approaches to GDP provided that the source data are also obtained from surveys or administrative collections of producers.