*Middle income countries: Albania, Algeria, Azerbaijan, Bahamas, Barbados, Belarus, Belize, Bosnia-Herzegovina, Botswana, Bulgaria, Chile, Colombia, Costa Rica, Croatia, Ecuador, Egypt, Gabon, Georgia, Grenada, Iraq, Jordan, Kazakhstan, Kosovo, Libya, Malaysia, Mauritius, Mexico, Moldova, Montenegro, Morocco, Nauru, North Macedonia, Panama, Peru, Romania, Russia, Saint Lucia, Saint Vincent and the Grenadines, Serbia, Seychelles, South Africa, Suriname, Thailand, Trinidad and Tobago, Tunisia, Turkmenistan, Ukraine, Uruguay

**Low income countries: Afghanistan, Angola, Armenia, Bangladesh, Belize, Benin, Bhutan, Bolivia, Burkina Faso, Burundi, Cambodia, Cameroon, Cape Verde, Central African Republic, Chad, Comores, Congo Brazzaville, Congo Kinshasa, Dominican Republic, El Salvador, Equatorial Guinea, Eritrea, Ethiopia, Fiji, Gambia, Ghana, Guatemala, Guinea, Guinea Bissau, Guyana, Haiti, Honduras, India, Indonesia, Ivory Coast, Jamaica, Kenya, Kiribati, Kyrgyz Republic, Laos, Lesotho, Liberia, Madagascar, Malawi, Maldives, Mali, Marshall Islands, Mauritania, Micronesia, Mongolia, Mozambique, Myanmar, Namibia, Nepal, Nicaragua, Niger, Nigeria, Pakistan, Papua New Guinea, Philippines, Rwanda, Samoa, Sao Tome Principe, Senegal, Sierra Leone, Solomon Islands, Somalia, Sri Lanka, Sudan, South Sudan, Suriname, Swaziland, Tajikistan, Tanzania, Timor-Leste, Togo, Tonga, Tuvalu, Uganda, Uzbekistan, Vanuatu, Venezuela, Vietnam, Yemen, Zambia, Zimbabwe