The cited figure is based on estimates by specialised institutions and bodies, such as the International Chamber of Commerce, Transparency International, UN Global Compact, World Economic Forum, Clean Business is Good Business, 2009, which suggest that corruption amounts to 5% of GDP at world level
Het genoemde cijfer is gebaseerd op schattingen van 2009 van gespecialiseerde instituten en organen, zoals de International Chamber of Commerce, Transparency International, UN Global Compact, World Economic Forum, Clean Business is Good Business, die erop wijzen dat corruptie tot 5% van het wereldwijde bbp bedraagt.