GNI stands for Gross National Income. Developed Nations such as USA (except Mexico), West European
UNESCO defines GNI as "The sum of value added by all resident producers plus any taxes (less subsidies) not included in the valuation of output plus net receipts of primary income (compensation of employees and property income) from abroad. GNI per capita is gross national income divided by mid-year population."
Most African countries have a low GNI per Capita. Least Developed Countries (LDCs) have low Human Development Index (HDI) ratings. The LDCs also have low GNI.
GNI is one of the measures of national income and output used in economics. Some other common measures used are Gross National product (GNP), Gross Domestic Product (GDP), Net National Product (NNP) and Net National Income (NNI).