The information that is obtained is the number of years that a person became on their last birthday and not the age that they are going to be.
When a person does not remember their age, request an identification document where their date of birth appears; in case they do not have one, help establish the age making reference to personal deeds such as their age when they were married, age of the oldest child, etc. In the last case, the enumerator should calculate the age related with any national, international or local event whose date is well known.
For minors under one year write 00; Examples: If a child is 11 months old write 00, if 4 months old write 00; if 15 days old write 00.
For those older than 99 write 99; Example: if a person is 103 write down 99.