On Friday 28 June 2013 at 9:00 a.m., the CZSO will release in compliance with the CZSO Catalogue of Publications and 2013 Catalogue of Products, the quarterly national accounts data. It will include also a refined estimate of the GDP and other indicators for the first quarter of 2013, which is based on update statistical and administrative data. The CZSO will thus provide for the very first time to the domestic users and users from abroad the comprehensive, inherently fully consistent set of accounts by economic activity and sector for the previous quarter, which it will continue to compile and publish always 3 months after the end of the reference period.