National accounts of OECD countries : main aggregates : 2006-2013. Volume 2015/1. Paris : OECD, 2015. 179 s. Available on Internet: <http://www.oecd-ilibrary.org/economics/national-accounts-of-oecd-countries-volume-2015-issue-1_na_ma_dt-v2015-1-en> ISBN 978-92-64-23268-6. ISSN 2221-4321.