The Adding It Up 2019 project produced estimates for 132 countries classified by the World Bank as being low- or middle-income countries (LMICs) on the basis of their having a 2018 per capita GNI of $US12,375 or less. The Adding It Up analysis excluded the following LMICs because they did not have United Nations (UN) population or birth data: American Samoa, Dominica, Marshall Islands, Nauru and Tuvalu. In addition, per UN World Population Prospects classifications, Kosovo was combined with Serbia for all calculations.
Africa
- Eastern Africa: Burundi, Comoros, Djibouti, Eritrea, Ethiopia, Kenya, Madagascar, Malawi, Mauritius, Mozambique, Rwanda, Somalia, South Sudan, Uganda, United Republic of Tanzania, Zambia, Zimbabwe
- Middle Africa: Angola, Cameroon, Central African Republic, Chad, Congo, Democratic Republic of the Congo, Equatorial Guinea, Gabon, Sao Tome and Principe
- Northern Africa: Algeria, Egypt, Libya, Morocco, Sudan, Tunisia
- Southern Africa: Botswana, Eswatini, Lesotho, Namibia, South Africa
- Western Africa: Benin, Burkina Faso, Cabo Verde, Côte d’Ivoire, Gambia, Ghana, Guinea, Guinea-Bissau, Liberia, Mali, Mauritania, Niger, Nigeria, Senegal, Sierra Leone, Togo
Asia
- Central Asia: Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, Uzbekistan
- Eastern Asia: China, Democratic People's Republic of Korea (North Korea), Mongolia
- Southeast Asia: Cambodia, Indonesia, Lao People's Democratic Republic, Malaysia, Myanmar, Philippines, Thailand, Timor-Leste, Viet Nam
- Southern Asia: Afghanistan, Bangladesh, Bhutan, India, Iran, Maldives, Nepal, Pakistan, Sri Lanka
- Western Asia: Armenia, Azerbaijan, Georgia, Iraq, Jordan, Lebanon, State of Palestine, Syrian Arab Republic, Türkiye, Yemen
- Eastern Europe: Belarus, Bulgaria, Republic of Moldova, Romania, Russian Federation, Ukraine
- Southern Europe: Albania, Bosnia and Herzegovina, Montenegro, North Macedonia, Serbia
Latin America and the Caribbean
- Caribbean: Cuba, Dominican Republic, Grenada, Haiti, Jamaica, Saint Lucia, Saint Vincent and the Grenadines
- Central America: Belize, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua
- South America: Argentina, Bolivia, Brazil, Colombia, Ecuador, Guyana, Paraguay, Peru, Suriname, Venezuela
Oceania
- Melanesia: Fiji, Papua New Guinea, Solomon Islands, Vanuatu
- Micronesia: Kiribati, Micronesia
- Polynesia: Samoa, Tonga
Source: World Bank, World Bank Country and Lending Groups, 2020 fiscal year.
