Online annex: Inter-agency Task Force on Financing for Development (https://developmentfinance.un.org). Average relative preferential margins enjoyed in developed-country markets, 2016 ,Relative Preferential Margin Developed regions,0.4 East Asia,-1.2 South Asia,-0.4 Sub-Saharan Africa,0.3 West Asia and North Africa,0.2 Latin America,1.1 Transition economies,-0.6 Chart downloaded on 2018-11-12 17:49:45 from https://developmentfinance.un.org based on data from UNCTAD (2017). Key Statistics and Trends in Trade Policy 2017.