CENSUS MICRODATA : THAILAND by PAKAMAS RATTANALANGKARN NATIONAL STATISTICAL OFFICE Thailand National Statistical Office

Thailand National Statistical Office Presentation Outline 1. History of Census Taking 2. Census Coverage 3. Major Concepts 4. Census Methodology 5. Census Microdata 6. Documents Entrusted to IPUMS 7. Microdata Harmonization Thailand National Statistical Office

1. History of Census Taking Thailand National Statistical Office Time Year Organization 1-5 6 7 8 9 10 1909, 1919, 1929, 1937, 1947 1960 (Pop.) 1970 1980 1990 2000 Ministry of Interior NSO Pop. & House Thailand National Statistical Office

Population of Thailand, 1909 - 2000 Census Census Date Population (Million) 1 2 3 4 5 6 7 8 9 10 1 Sep. 1909 15 July 1919 15 July 1929 23 May 1937 24 May 1947 25 April 1960 1 April 1970 1 April 1980 1 April 1990 1 April 2000 8.1 9.2 11.5 14.5 17.4 26.2 34.4 44.8 54.5 60.6

Thailand National Statistical Office 2. Census Coverage All Thai people at the Census Date (1 April). Persons having usual residence in Thailand. Thai diplomatic personnel and family stationed abroad. Foreign civilian having usual residence in Thailand. Thailand National Statistical Office

Thailand National Statistical Office 3. Major Concepts Census approach : De jure, except students de facto Census date : 1 April Field work period : April Enumeration unit : Household Method of data collection : Face - to - face interview Thailand National Statistical Office

Thailand National Statistical Office 4. Census Methodology Listing Form : enumerated all type of households Preliminary Report Enumeration Form, has 2 types : Short Form : enumerated all households Long Form : enumerated sample private households, all collective households 1 % sample file Thailand National Statistical Office

4. Census Methodology (Contd.) Thailand National Statistical Office - Post Enumeration Survey (PES) To determine the completeness and accuracy Coverage error Content error Thailand National Statistical Office

Thailand National Statistical Office 5. Census Microdata Approximately 1% sample file. Selected from households with Long Form questionnaires. Sample Design : Stratified two – state sampling PSU : enumeration district SSU : household Thailand National Statistical Office

6. Documents Entrusted to IPUMS Thailand National Statistical Office Enumeration Form : Short Form and Long Form Instruction to Enumerators Dictionary for Microdata Administrative Geography Code Input Format Thailand National Statistical Office

7. Microdata Harmonization Thailand National Statistical Office 7.1 Structure : Population File and Housing File Population File : consisted of Geography and internal migration Household and family structure Demography and social Fertility and mortality etc. Thailand National Statistical Office

7. Microdata Harmonization (Contd.) 7.1 Structure : Population File and Housing File (Contd.) Housing File : consisted of Living quarters Building Facilities Household variables etc. Thailand National Statistical Office

7. Microdata Harmonization (Contd.) Coverage of Thailand censuses, not change Concepts and definitions of the same questions, not change, some questions adjusted to have a more completeness and appropriate with the times. Thailand National Statistical Office

7. Microdata Harmonization (Contd.) Some questions were deleted or added, depended on the appropriate situations. Adopted the classification of working status, occupation and industry by international standards. Thailand National Statistical Office