Basic indicators

Definitions of the indicators

Under-five mortality rate - Probability of dying between birth and exactly five years of age expressed per 1,000 live births.

Infant mortality rate - Probability of dying between birth and exactly one year of age expressed per 1,000 live births.

GNI per capita - Gross national income (GNI) is the sum of value added by all resident producers plus any product 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. GNI per capita in US dollars is converted using the World Bank Atlas method.

Life expectancy at birth - The number of years newborn children would live if subject to the mortality risks prevailing for the

Adult literacy rate - Percentage of persons aged 15 and over who can read and write.

Net primary school enrolment/attendance - Derived from net primary school enrolment rates as reported by UNESCO/UIS (UNESCO Institute of Statistics) and from national household survey reports of attendance at primary school.

Income share - Percentage of income received by the 20 per cent of households with the highest income and by the 40 per cent of households with the lowest income.


Main data sources

Under-five and infant mortality rates - UNICEF, United Nations Population Division and United Nations Statistics Division.

Total population - United Nations Population Division.

Births - United Nations Population Division.

Under-five deaths - UNICEF.

GNI per capita - World Bank.

Life expectancy - United Nations Population Division.

Adult literacy - United Nations Educational, Scientific and Cultural Organization (UNESCO) and UNESCO/UIS (UNESCO Institute of Statistics), including the Education for All 2000 Assessment.

School enrolment/attendance - UIS and UNESCO, including the Education for All 2000 Assessment, Multiple Indicator Cluster Surveys (MICS) and Demographic and Health Surveys (DHS).

Household income - World Bank.




Range $735 or less.


Range $736 to $2935.


Range $2936 to $9075.


Range $9076 or more.


Data not available.


Indicates data that refer to years or periods other than those specified in the column heading, differ from the standard definition, or refer to only part of a country.


Indicates data that differ from the standard definition or refer to only part of a country, but are included in the calculation of the regional and globalaverages.


Data refer to the most recent year available during the period specified in the column heading.