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Sample characteristics: Colombia

Census/survey characteristics
Type Census
Title XIII National Population and II Housing Census
Statistical agency Departmento Administrativo Nacional de Estadística (DANE)
Population universe Population census included people in territories, sailors, diplomats and their families. The indigenous population residing in remote areas was not enumerated.
De jure or de facto De facto
Census/survey day July 15, 1964
Field work period Urban population and settlements with 20 or more dwellings were "immobilized" and enumerated on census day. Dispersed population was enumerated 20 days prior to census date. The National Territories (intendances and commissaries) were enumerated over a period of two months, following census day.
Questionnaire A single form was used for the entire country. It requested information about buildings, dwellings, households and individuals.
Type of fieldwork Direct enumeration. Beginning with the census of 1964, Colombia has relied on high school students as enumerators.
Estimated undercount 1.8%
Microdata sample characteristics
Sample design Systematic sample of every 50th individual after a random start. Drawn by DANE from the original census enumeration forms.
Sample fraction 2%
Sample size (person records) 349,652
Sample weights Self-weighting.

Expansion factor = 50.

Units identified in microdata
Dwellings No
Vacant units No
Households No
Collective dwellings Included but not identified
Smallest geography Municipalities with 20,000+ population in 1993 combined by IPUMS
Unit definitions
Dwellings Separated space with independent access that serves as a human lodging
Households Individuals living in the same dwelling and sharing at least one meal.

If a household is identified within a group quarters unit, it is enumerated separately as a private household

Collective dwellings Group of persons who share a common roof and food because of work, health, religion, etc.
Special populations People in transit included in microdata sample
Census/survey characteristics
Type Census
Title XIV National Population and III Housing Census
Statistical agency Departmento Administrativo Nacional de Estadística (DANE)
Population universe Population census included people in territories, sailors, diplomats and their families. The indigenous population was enumerated for the first time.

Microdata is available for 100% of the population, but current version excludes group quarters and indigenous population.

De jure or de facto De facto
Census/survey day October 24, 1973
Field work period Population in urban areas was enumerated on census day, during which the population was "immobilized." Enumeration in rural areas continued for one month. The operation began four months earlier in National Territories and ended on census day. Unusually heavy rains caused the enumeration to be extended in some remote areas.
Questionnaire 3 enumeration forms were used: (f1) population in private households with household and dwelling information; (f2) indigenous population, enumerated at the level of the dwelling, not the individual (slightly modified for the enumeration of National Territories); (f3) only age and sex was requested for individuals in group quarters and transients.
Type of fieldwork Direct enumeration
Estimated undercount 7.2%
Microdata sample characteristics
Sample design Systematic sample of every tenth private household, after a random start, adjusted for households with illogical household structures (1%). Drawn by the IPUMS from 100% microdata tapes of private dwellings.
Sample fraction 10%
Sample size (person records) 1,988,831
Sample weights Self-weighting.

Expansion factor = 10.

Units identified in microdata
Dwellings No
Vacant units No
Households Yes
Collective dwellings No
Smallest geography Municipalities with 20,000+ population in 1993 combined by IPUMS
Unit definitions
Dwellings Separated space with independent access that serves as a human lodging
Households Individuals living in the same dwelling and sharing at least one meal.

If a household is identified within a group quarters unit, it is enumerated separately as a private household

Collective dwellings Group of persons who share a common roof and food because of work, health, religion, etc.
Special populations People in transit and indigenous persons, available but not included in current microdata version.
Census/survey characteristics
Type Census
Title XV National Population and IV Housing Census
Statistical agency Departmento Administrativo Nacional de Estadística (DANE)
Population universe Population census included people in territories, sailors, diplomats and their families. The indigenous population was enumerated. Due to guerrilla activity, approximately 3,000 dwellings (out of 6 million) could not be enumerated.

The microdata sample consists of the 10% survey. It excludes population in group quarters and indigenous population.

De jure or de facto De jure
Census/survey day October 15, 1985
Field work period Urban population was not "immobilized" and the enumeration continued over a period of two weeks starting October 15. In rural areas enumeration continued for one month. In the National Territories (intendances and commissaries) fieldwork continued from October through March and, for some remote areas, fieldwork was timed to avoid the rainy season.
Questionnaire 5 enumeration forms applied to 5 different target populations: (f1) short form for private dwellings (90%) of the population, requested information on age, sex, and relationship to householder; (f2) long form for private dwellings (10%); (f3) group quarters, 0.17% of dwellings; (f4) indigenous private dwellings (100%), representing 0.95% of dwellings; and (f5) indigenous group-quarters, 0.01% of dwellings.
Type of fieldwork Direct enumeration for both short and long form. For the short form, some areas were designated for self-enumeration.
Estimated undercount 8.8%
Microdata sample characteristics
Sample design Systematic sample of dwellings pre-selected before fieldwork based on pre-census enumeration. In rural areas selection was determined in the field by the enumerator.
Sample fraction 10%
Sample size (person records) 2,643,125
Sample weights Computed by census agency and should be used for most types of analysis.
Units identified in microdata
Dwellings Yes
Vacant units Yes
Households Yes
Collective dwellings No
Smallest geography Municipalities with 20,000+ population in 1993 combined by IPUMS
Unit definitions
Dwellings Separated space with independent access that serves as a human lodging
Households Individuals living in the same dwelling. For indigenous population definition of household requires sharing at least one meal.
Collective dwellings Group of persons who share a common roof and food because of work, health, religion, etc.
Census/survey characteristics
Type Census
Title XVI National Population and V de Housing Census
Statistical agency Departmento Administrativo Nacional de Estadística (DANE)
Population universe The entire population of the country, including all households and dwellings.

Microdata is available for 100% of the population, but current version excludes group quarters and indigenous population.

De jure or de facto De jure
Census/survey day October 24, 1993
Field work period The urban population, including settlements with 300 dwellings or more, was "immobilized" and counted on census day. In rural areas, fieldwork continued for a period of six months, from August 1993 to February 1994.
Questionnaire 3 enumeration forms: (f1) long form for private dwellings; (f2) short form for group quarters (institutional and non-institutional, population without housing or living in camps); and (f3) indigenous population.
Type of fieldwork Direct enumeration.
Estimated undercount 11.5%
Microdata sample characteristics
Sample design Systematic sample of every tenth private dwelling. Drawn by the IPUMS from 100% microdata of private dwellings.

NOTE: The sample excludes two small departments -- Guainía and Vaupés -- which had no cases enumerated as private dwellings.

Sample fraction 10%
Sample size (person records) 3,213,657
Sample weights Self-weighting.

Expansion factor = 10.

Units identified in microdata
Dwellings Yes
Vacant units Yes
Households Yes
Collective dwellings No
Smallest geography Municipalities with 20,000+ population in 1993 combined by IPUMS
Unit definitions
Dwellings Separated space with independent access that serves as a human lodging
Households Individuals living in the same dwelling with common food expenses
Collective dwellings Group of persons who share a common roof and food because of work, health, religion, etc.
Special populations Indigenous population available, but not included in current microdata.
Census/survey characteristics
Type Census
Title General Census 2005 (XVII of Population and Dwelling and VI of Housing).
Statistical agency Departmento Administrativo Nacional de Estadística (DANE)
Population universe The entire population of the country, including all households and dwellings.

In addition, an inventory was made of economic establishments and agricultural units associated with the rural dwelling.

The microdata sample consists of the 20% survey. It excludes population in group quarters.

De jure or de facto De jure
Census/survey day The collection period for the information was between May 2005 and February 2006, with interruptions for vacation periods between June and July 2005 and between December 2005 and January 2006.
Field work period The work of information collection was done based on the conglomerates of municipalities formed according to their demographic dynamics, with partial immobilization.
Questionnaire Three enumeration questionnaires were used:
1. Questionnaire for the Urban environment. This is carried out by the field supervisor, through observation at the block level. It seeks to provide and overview of the predominant urban setting, based on criteria of habitat which are fundamentally physical.
2. Questionnaire of Census Units. This is carried out by the enumerator starting with the information reported directly by the units. It is divided into sections for: dwellings, households, persons, economic units and agricultural units.
3. Questionnaire for Special Housing Units (LEA). In the case of military barracks and penitentiary centers, this is carried out by resident personnel, trained for this purpose by the municipal coordinator. In the remaining cases, it is the responsibility of the enumerator.
Type of fieldwork Direct enumeration.
Estimated undercount 3.7%
Microdata sample characteristics
Sample design Systematic sample of every other private dwelling. Drawn by the IPUMS from 20% microdata of private dwellings.

The census office described the method for the original sample as a Bernoulli stratified design for elements of households, Poisson for dwellings, and of conglomerates for persons.

Sample fraction 10%
Sample size (person records) 4,117,607
Sample weights Factors of expansions were calibrated based on some basic variables of the census and starting with the basic expansion factor according to the design.
Units identified in microdata
Dwellings Yes
Vacant units No
Households Yes
Collective dwellings No
Smallest geography Municipalities with 20,000+ population in 1993 combined by IPUMS
Unit definitions
Dwellings Independent and separate space with areas of exclusive use, inhabited or designed to be inhabited by one or more persons.
Households A person or group of people, related or not, who occupy all or part of a dwelling; attend to basic needs charged to a common budget, and they generally share food.
Collective dwellings An institution in which a group of people generally not related lives and sleeps; done for reasons of study, work, religion, military discipline, administrative labors, rehabilitation, and others.