Définition
Expected years of schooling are the number of years during which a 2-year-old child can expect to spend in schooling, based on the school enrolment rates at a given date.
These expected years are calculated as the sum of enrolment rates observed at the different ages from 2 to 29 years old. An enrolment rate of 80% contributes 0,8 year to the expected duration of schooling. This expected duration of schooling differs from the "real" one which can only be known when a generation has totally completed its studies.