Plain language definition: Not applicable Detailed definition: Refers to the age at last birthday before the reference date, that is, before May 10, 2011. Values (English): Total - Age groups 0 to 14 years 0 to 4 years 5 to 9 years 10 to 14 years 15 to 24 years 15 to 19 years 20 to 24 years 25 to 44 years 45 to 64 years 65 years and over 65 to 74 years 75 years and over