The table presents the percentage distribution of the population in different age groups in a country for the years 2000, 2010, and 2020.

The table provides information regarding the percentage of the population categorized in four age groups for three years -2000, 2010, and 2020. Overall, the third age group (25 to 54 years old) had the highest contribution rate to the population, while the last age group (55 and above) accounted for the least throughout the period. […]