Definition
This question is asked to find out the ages and dates of birth of the household members. Concerning the date of birth, the survey officers were requested to confirm the date from documentation if the respondent did not know the date of birth. The question starts with Day of birth, then the Month of birth and finally the Age in years. For Month of birth the equivalent is given in 2-digit numbers, i.e. January is represented with 01, February with 02 and so forth. The Year of birth is given as a four-digit number, e.g. 1933 or 1996.
The instruction for Age in years is to write the years in whole numbers and not in words. Moreover, these years must be complete years; thus if a person is two years and six months old, the instruction is to write the two completed years. For children who are less than a year, the instruction is to write 00.