Natural resources This entry lists a country's mineral, petroleum, hydropower, and other resources of commercial importance.

Net migration rate This entry includes the figure for the difference between the number of persons entering and leaving a country during the year per 1,000 persons (based on midyear population). 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 as net emigration (e.g., -9.26 migrants/1,000 population). The net migration rate indicates the contribution of migration to the overall level of population change. High levels of migration can cause problems such as increasing unemployment and potential ethnic strife (if people are coming in) or a reduction in the labor force, perhaps in certain key sectors (if people are leaving).

Oil - consumption This entry is the total oil consumed in barrels per day (bbl/day). The discrepancy between the amount of oil produced and/or imported and the amount consumed and/or exported is due to the omission of stock changes, refinery gains, and other complicating factors.

Oil - exports This entry is the total oil exported in barrels per day (bbl/day), including both crude oil and oil products.

Oil - imports This entry is the total oil imported in barrels per day (bbl/day), including both crude oil and oil products.

Oil - production This entry is the total oil produced in barrels per day (bbl/day). The discrepancy between the amount of oil produced and/or imported and the amount consumed and/or exported is due to the omission of stock changes, refinery gains, and other complicating factors.

Oil - proved reserves This entry is the stock of proved reserves of crude oil in barrels (bbl). Proved reserves are those quantities of petroleum which, by analysis of geological and engineering data, can be estimated with a high degree of confidence to be commercially recoverable from a given date forward, from known reservoirs and under current economic conditions.

People This category includes the entries dealing with the characteristics of the people and their society.

People - note This entry includes miscellaneous demographic information of significance not included elsewhere.

Personal Names - Capitalization The Factbook uses all uppercase letters for personal names by which the subject is usually referred to in various media. An example is President Vicente FOX Quesada of Mexico. Members of royal families are usually referred by other than their family name (King and Prime Minister FAHD bin Abd al-Aziz Al Saud of Saudi Arabia, Queen BEATRIX of the Netherlands, or King PHUMIPHON Adunyadet of Thailand). Some Asians are referred to by the first element of their name - also their surname, such as President NO Muh-hyun of South Korea.