Column 12: The serial number of mother (For private households only)
Ask: "Does the mother of ........ (name) ...... live in this household as well?"
If the mother lives in this household, record the serial number in the last 2 digits of the first column that corresponds to that person.
If the mother lives somewhere else, dies, lost, or the person does not know who his/her mother is, record "95" for that person.
Mother means the woman who gives birth to a child, excluding step-child or adopted child.