Table A2.

Regional split.

Asia: Bangladesh; Cambodia; India; Kazakhstan; Kyrgyzstan; Nepal; Philippines; Uzbekistan

Africa: Burkina Faso; Benin; Central African Republic; Democratic Republic of the Congo; Cameroon; Chad; Comoros; Congo Brazzaville; Cote d’Ivoire; Ethiopia; Gabon; Ghana; Guinea; Kenya; Lesotho; Liberia; Madagascar; Malawi; Mali; Mozambique; Namibia; Niger; Nigeria; Rwanda; Senegal; Sierra Leone; South Africa; Swaziland; Tanzania; Togo; Zambia; Zimbabwe

Americas: Bolivia; Brazil; Colombia; Dominican; Guatemala; Haiti; Honduras; Nicaragua; Peru

Middle East: Egypt; Jordan; Morocco; Turkey

Note that there were too few countries in the European category (Armenia, Azerbaijan, Moldova), therefore we decided to exclude them from the subgroup analysis.