CPH Form 2 questionnaires were sent to them through the Department of Foreign Affairs. Batas Pambansa Blg. The final population count shall be considered official for all purposes upon proclamation by the President of the Philippines not later than February 28, 2001. Projections on the age-sex structure of the Philippine population by national, regional and provincial level will be produced using the population data that will be obtained from the Census 2000 as the base population. The assumptions underlying the projections are fertility, mortality and migration.
Fertility affects population size and age-sex structure through births.
For any given period in the future, the projected number of births is determined by the projected number of women in the reproductive ages exposed to the risk of childbearing, the assumed level of fertility, and age pattern of fertility which refers to the contribution to total fertility of the women in each five-year age group of the childbearing period. The TFR is a measure of the level of fertility while the ASFRs depict the pattern of fertility in the reproductive ages. The mortality indicator that will be used in specifying mortality assumptions for projection is life expectancy at birth which account for deaths as affecting population structure. Independent estimates of expectancy of life at birth at the national, regional and provincial levels will be used as the initial values for projecting mortality in the future. Such estimates can be determined by constructing the appropriate life tables using the registered deaths as input in the computation.