In 2009, the United Nations Statistical Commission endorsed a revised set of international standards for the compilation of national accounts: the System of National Accounts (SNA) 2008, replacing the 1993 version of the SNA. The indicators presented in this publication are based on the 2008 SNA for all OECD countries except Chile, Japan, Norway and Turkey. For Portugal, growth accounts are presented on a 1993 SNA basis whereas the labour productivity and unit labour cost indicators are presented on a 2008 SNA basis. For New Zealand, growth accounts are presented on a 2008 SNA basis whereas the labour productivity and unit labour cost indicators are presented on a 1993 SNA basis. The 2008 SNA includes a number of changes from the 1993 SNA and was adopted by most OECD countries at the end of 2014.