United Nations Demographic Yearbook 1977

image of United Nations Demographic Yearbook 1977
The Demographic Yearbook is a comprehensive collection of international demographic statistics, prepared by the Statistical Office of the United Nations. The Demographic Yearbook 1977, which features international migration as a special subject, is the twenty-ninth in a series published by the United Nations.

English, French


Technical notes on the statistical tables

These Technical Notes are designed to give the reader relevant information for using the statistical tables. Information pertaining to the Yearbook in general is presented in sections dealing with various geographical aspects and population, vital statistics and international migration data. These are followed by remarks particular to the individual tables. These include the description of the variables, remarks on the reliability of the data, limitations, coverage and information on the presentation of earlier data. Details of computation of rates, ratios or percentages are presented also when appropriate.


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