This publication releases the preliminary data for 2012 of International Trade Statistics, as well as the 2011 definitive results.
Statistics on International trade in goods include Intra-EU trade, based on data from the Intrastat system, and the Extra-EU trade based on customs declarations.
Instituto Nacional de Estatística - Estatísticas do Comércio Internacional : 2012. Lisboa : INE, 2013. Available at www <url:https://www.ine.pt/xurl/pub/153375426>. ISSN 0873-0687. ISBN 978-989-25-0202-1