The Central Intelligence Agency (CIA) is an independent US
Government agency responsible for providing national security
intelligence to senior US policymakers.
This entry contains the average number of years to be lived by a group of people born in the same year, if mortality at each age remains constant in the future. The entry includes total population as well as the male and female components. Life expectancy at birth is also a measure of overall quality of life in a country and summarizes the mortality at all ages. It can also be thought of as indicating the potential return on investment in human capital and is necessary for the calculation of various actuarial measures.
The online Factbook is updated bi-weekly. ISSN 1553-8133
For additional information on government leaders in selected foreign countries, go to World Leaders.
