SOURCE
All CIA World Factbooks 18 December 2003 to 18 December 2008

DEFINITION
The average number of years to be lived by amen in this nation 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.

DEFINITION: The average number of years to be lived by amen in this nation 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.

SOURCE: All CIA World Factbooks 18 December 2003 to 18 December 2008