This variable contains a person's age at last birthday. These data are collected for each person. Age is calculated from date of birth, however if this is not provided, stated age will be used. If neither is provided age is imputed.
For the 2001 Census age was available for 0 to 99 years singly and then 100 years and over. For 2006 age is available for 0 to 115 years singly.