Samenvatting

Statistics Netherlands, in compliance with European regulations, includes illegal and informal activities in the national accounts estimates. These estimates are subject to greater uncertainty and different methods and sources are used than for legal activities. Statistics Netherlands chooses to make an elaborate estimate once every five years and to have a simpler estimate in the other years. The reasons for this simpler estimate and the estimate itself are explained. Special attention is paid to synthetic drugs, where the difference between the revenues generated within the national borders and those attributed to the Dutch economy is explained.