Response options: First version, Revision June 2011, Revision October 2011 (IDEA), Revision May 2012 (Big five), Revision May 2012 + Sylatech MENA module
Response options: SE:Inapplicable ; SG: Refused; BH: Missing{Inappropriate}, Not asked in survey, Not applicable (Have never worked;Currently does not work){N, No answer, Don´t know, Government or public institution, Private business or industry, Private non-profit organization, MX, EC: Autonomous/Informal sector; PE, CH: Other
