Working age

The period of a person's life during which they may be employed, usually above the age of compulsory education and below the official retirement age.

"Most often the working-age population includes men aged 15-59 and women 15-64. However, this standardized definition may differ from the current definitions of working age in some countries due to a gradual increase in the retirement age for both genders."
(Unicef, Working age population, Glossary, visited 2009-06-15)