Tanzania - Sources and Definitions for Country Facts and Figures

Capital, Total Area, Languages and Currency based on data from the BBC News Country Profiles. Tanzania is the largest country in east Africa with a total area of 945,000 sq km, out which 2000 sq km is Zanzibar, 881,000 sq km Mainland, 62,000 sq km water, and 3.35 sq km forest and woodlands. Data from the Tanzania National Website,accessed on 17 May 2007.

Population, 2005, based on data from the United Nations Department of Economic and Social Affairs, Population Division's World Population Prospects: the 2006 Revision Population Database. The National Bureau of Statistics Tanzania estimates the population for 2005 at 37,379,000. Data from the National Bureau of Statistics Tanzania Official Website, accessed on 17 May 2007.

Gross Domestic Product (Purchasing Power Parity). The sum value of all final goods and services produced in a country in a given year valued at prices prevailing in the United States of America. GDP Per Capita (PPP), 2004, is Gross Domestic Product on a Purchasing Power Parity basis divided by the population. GDP Per Capita PPP based on data from the United Nations Development Programme's Human Development Report 2006

International Migrants as a Percentage of the Population, 2005. Estimated number of international migrants divided by the total population, expressed as a percentage. The number of international migrants generally represents the number of persons born in a country other than that in which they live. Data from the United Nations Department of Economic and Social Affairs, Population Division's World Migrant Stock: The 2005 Revision Population Database.

Female Migrants as a Percentage of All International Migrants, 2005. The percentage of female migrants among all international migrants. Data from the United Nations Department of Economic and Social Affairs, Population Division's World Migrant Stock: The 2005 Revision Population Database.

Percentage of Population Under 15, 2005, refers to the percentage of persons below 15 years old with respect to the total population. Data from the United Nations Department of Economic and Social Affairs, Population Division's World Population Prospects: the 2006 Revision Population Database.

Adult HIV Prevalence, 2005, refers to the percentage of adults aged 15 to 49 years old infected with the HIV virus. It is calculated by dividing the number of adults aged 15 to 49 years who have HIV in a given year by the population of adults of the same age group. Data from the UNAIDS Report on the Global AIDS Epidemic 2006.

Human Development Index (HDI). A composite indicator that measures development and human progress based on health, education, and purchasing power. The higher the HDI rank, the higher a country's level of development. HDI Rank, 2004, based on data from the United Nations Development Programme's Human Development Report 2006.

Human Poverty Index for Developing Countries (HPI-1) is a composite indicator that measures deprivations in the three basic dimensions captured in the human development index - a long and healthy life, knowledge and a decent standard of living - and focuses on the proportion of people below a threshold level. The higher the HPI-1 rank, the lower the level of poverty. HPI-1 Rank, 2004, based on data from the United Nations Development Programme's Human Development Report 2006.

Workers' remittances and compensation of employees received (USD), 2004, comprises current transfers by migrant workers and wages and salaries earned by nonresident workers. Data from the World Bank's World Development Indicators database, April 2006.

Net Migration Rate, 2000-2005. The difference between the number of persons entering and leaving a country during the year per 1,000 persons. An excess of persons entering the country is referred to as net immigration (e.g., 3.56 migrants/1,000 population); an excess of persons leaving the country is referred to as net emigration (e.g., -9.26 migrants/1,000 population). Net Migration Rate based on data from the United Nations Department of Economic and Social Affairs, Population Division's World Migrant Stock: The 2005 Revision Population Database.