Thus,for 2004 and 2005,and also given the need for compliance with Regulation (EC) nº2150/2002 of the European Parliament and the Council of 25 November 2002 on waste statistics
was carried out by the National Institute of Statistics a clearance involving the use of extrapolation techniques on the number of companies that constitute the universe of reference of the Inquiry Harmonized Companies 2004 and 2005 covering the entire spectrum of economic activities in Portugal