Data on previous residence are vital for projects concerning housing and industrial development. Estimates of migration are needed for preparing population projections necessary for planning and policy purposes. Distribution of internal migration at certain geographic level will be better judged as to its implications to social changes given a detailed analysis of the volume and trend of internal migration.
The questions on previous residence pertain to the place where a person has lived before his present residence and when he moved to his present residence.
Ask the question in P15, "In what city/municipality did _____ live before moving to this place?" for all persons 5 years old and over. Enter code 8 in P15 if the person's previous residence is the same as his present residence. However, if his previous residence is in another city/municipality, write the name of the city/municipality and province on the space provided.
For those whose previous residence is in a foreign country, enter code 7 in the code box provided in P15.
If the respondent does not know the previous residence of the members of the household, ask the person himself about his previous residence. However, if the person does not recall or know the name of the city/municipality where he lived before his present residence after exhaustive probing, enter code 9 for unknown in the code boxes.
Ask the respondent the question in P16, "When did move to this city/municipality?" for all members of the household who are 5 years old and over. Specify the month and year where each person moved to the city/municipality (present residence).
For example:
Mo. JAN. Yr. 1978
If the person has lived in his present residence since birth, enter 0 (zero) in the code box.