This paper, prepared by Mr Ieong Meng Chao, Statistics and Census Service, Macao, China, has been reproduced as submitted. It has been issued without formal editing. Following the international practice, population censuses have been conducted in Macao every ten years.
Quarters are the basic enumeration units in Macao population census.
There are about 200,000 quarters in the 23.8km2 area. All quarters will be visited by the enumerators within the 10-day census period. Twenty percents of the quarters will be requested to answer a long form questionnaire, and the rest eighty percents will only need to answer a short form questionnaire. Traditionally the collected questionnaires are keyed in manually after the census period. The time required to complete the data entry of the questionnaires mainly depends on the available number of data entry operators.