1. CENSUS MICRODATA : THAILANDby
PAKAMAS RATTANALANGKARN
NATIONAL STATISTICAL OFFICE
Thailand National Statistical Office

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

3. 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

4. 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

5. 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

6. 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

7. 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

8. 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

9. 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

10. 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

11. 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

12. 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

13. 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

14. 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