Low-income countries countries include Burundi, Benin, Burkina Faso, Central African Republic, Cote d'Ivoire, Congo Dem. Rep., Congo Rep., Comoros, Eritrea, Ethiopia, Ghana, Guinea, Gambia, Guinea Bissau, Kenya, Liberia, Madagascar, Mali, Mozambique, Mauritania, Malawi, Niger, Nigeria, Rwanda, Senegal, Sierra Leone, Somalia, Chad, Togo, Tanzania, Uganda, Zambia, Zimbabwe.
Economies are divided according to 2010 GNI per capita, calculated using the World Bank Atlas method. Based on annual income, the four income groups are:
- Low income, $1,005 or less
- Lower middle income, $1,006 - $3,975
- Upper middle income, $3,976 - $12,275
- High income, $12,276 or more