
- Countries - The World Factbook- News & Stories Center for the Study of Intelligence (CSI) The World Factbook World Leaders The Langley Files Spy Kids 
- The World Factbook - The World Factbook- 1 day ago · Flags of the World Every flag has a story. View flags of all the world’s countries and territories to learn the symbolism behind each design. 
- World - The World Factbook- Oct 1, 2025 · Visit the Definitions and Notes page to view a description of each topic. 
- Birth rate Comparison - The World Factbook- Compares the average annual number of births during a year per 1,000 persons in the population at midyear; also known as crude birth rate. 
- Infant mortality rate Comparison - The World Factbook- Compares the number of deaths of infants under one year old in a given year per 1,000 live births in the same year. This rate is often used as an indicator of the level of health in a country. 
- Population growth rate Comparison - The World Factbook- Compares the average annual percent change in populations, resulting from a surplus (or deficit) of births over deaths and the balance of migrants entering and leaving a country. The rate may … 
- Real GDP (purchasing power parity) - The World Factbook- Compares the gross domestic product (GDP) or value of all final goods and services produced within a nation in a given year. A nation's GDP at purchasing power parity (PPP) exchange … 
- Public debt Comparison - The World Factbook- Compares the cumulative total of all government borrowing less repayments that are denominated in a country's home currency. Public debt should not be confused with external debt. 
- United Kingdom - The World Factbook- Oct 1, 2025 · Visit the Definitions and Notes page to view a description of each topic. 
- Debt - external Comparison - The World Factbook- Compares the total public and private debt owed to nonresidents repayable in foreign currency, goods, or services. These figures are calculated on an exchange rate basis.