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
Countries in the Upper-Middle-Income group include Botswana, Cape Verde, Gabon, Mauritius, Seychelles and South Africa.