3. Year of birth
1 _ _ _ Fill in the last three digits
_ _ For individuals born in 1989, 1990, or 1991, also specify the month of birth (e.g., for January, write "01," for February, write "02," and so on.) (This does not apply to Individual 01, the householder.)
13.3 The questions referring to the present individuals, members or non members of the household were the following:
1. Surname, name, name of father
2. Sex
3. Year of birth
4. Householder and kinship or relation to the householder.
The above questions were very simple and needed no clarification.
If there was no entry in one of these questions, an answer was entered relating to the other answers of the questionnaire.