| Census characteristics |
| |
1987 |
1998 |
2009 |
| Title of census |
General Census of Population and Housing 1987 |
General Census of Population and Housing 1998 |
Fourth General Census of Population and Housing 2009 |
| Census agency |
Central Bureau of the Census |
Central Bureau of the Census |
Central Bureau of the Census |
| Population universe |
All persons residing in the national territory, excluding diplomats and their families temporarily in Mali, foreign diplomats and their families, army personnel and military police, household members who left more than six months prior to the census. |
All persons residing in the national territory, excluding diplomats and their families temporarily in Mali, foreign diplomats and their families, army personnel and military police, household members who left more than six months prior to the census. |
All persons residing in the national territory, excluding diplomats and their families temporarily in Mali, foreign diplomats and their families, army personnel and military police, household members who left more than six months prior to the census. |
| De jure or de facto |
De jure and de facto |
De jure and de facto |
De jure and de facto |
| Enumeration unit |
Census household |
Census household |
Census household |
| Census day |
April 14, 1987 |
April 14, 1998 |
April 14, 2009 |
| Field work period |
— |
— |
April 1, 2009 to April 14, 2009 |
| Enumeration forms used |
A single form with sections on dwellings, individuals, and birth and death events. |
A single form with sections on dwellings, individuals, and birth and death events. |
A single form with sections on dwellings, individuals, emigration, and death events. |
| Type of field work |
Direct enumeration via house-to-house visits and personal interviews. |
Direct enumeration via house-to-house visits and personal interviews. |
Direct enumeration via house-to-house visits and personal interviews. |
| Respondent |
The head of household if available; otherwise not specified. |
The head of household if available; otherwise a resident person age 15 or older. |
The head of household if available; otherwise a resident person age 15 or older. |
| Coverage |
— |
— |
— |
| Microdata sample characteristics |
| |
1987 |
1998 |
2009 |
| Microdata source |
National Directorate of Statistics and Informatics |
National Directorate of Statistics and Informatics |
National Directorate of Statistics and Informatics |
| Sample design |
Systematic sample of every 10th household with a random start, drawn by the Minnesota Population Center |
Systematic sample of every 10th household with a random start, drawn by the Minnesota Population Center |
Systematic sample of every 10th household with a random start, drawn by the Minnesota Population Center |
| Sample unit |
Dwelling |
Dwelling |
Dwelling |
| Sample fraction |
10% |
10% |
10% |
| Sample size (person records) |
785,384 |
991,330 |
1,451,856 |
| Sample weights |
Self-weighting (expansion factor = 10). |
Self-weighting (expansion factor = 10). |
Self-weighting (expansion factor = 10). |
| Unit Definitions (Census) |
| |
1987 |
1998 |
2009 |
| Dwellings |
A structure used for habitation with walls and a roof or mobile housing such as a nomad tent, boat, or train car occupied at the time of the census. |
A structure used for habitation with walls and a roof or mobile housing such as a nomad tent, boat, or train car occupied at the time of the census. |
A structure used for habitation with walls and a roof or mobile housing such as a nomad tent, boat, or train car occupied at the time of the census. |
| Households |
A household is a group of individuals, related or not, who are living together under the same roof and under the responsibility of a head of household whose authority is recognized by all members of the household. |
A household is a group of individuals, related or not, who are living together under the same roof and under the responsibility of a head of household whose authority is recognized by all members of the household. |
A household is an individual or a group of individuals, related or not, who are living under the same roof under the responsibility of a head of household whose authority is recognized by all members of the household. |
| Group quarters |
An institutional household is a group of persons living together for reasons of study, health, work, travel, incarceration or common interest. |
An institutional household is a group of persons living together for reasons of study, health, work, travel, discipline or common interest. |
A communal household is a group of persons living together for reasons of study, health, work, travel, discipline, or common interest. |
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