single_year
children_coarse: from 0, 15, 20, 25, 30, 40, 50, 60, 70, 80 years
children_medium: from 0, 5, 10, 15, 20, 25, 30, 40, 50, 60, 70, 80 years
children_fine: from 0, 1, 2, 3, 4, 5, 10, 15, 20, 25, 30, 40, 50, 60, 70, 80 years
five_year: from 0, 1, 5, 10, 15, 20, … , 75, 80 years
zero_fifteen: from 0, 15+ years
zero_fifteen_sixty: from 0, 15, 60+ years
zero_one_4_20_40_60_80: from 0, 4, 20, 40, 60, 80+ years