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METADATA :: Sample characteristics :: Ireland (1971 1979 1981 1986 1991 1996 2002 2006 Selected All )

Census Characteristics	1991
Title	Census of Population of Ireland, 1991
Census Agency	Central Statistics Office
Population
Universe	All persons present in Ireland at the time of census, including visitors and those in residence. Usu
De jure or de facto	De facto
Enumeration unit	Household
Census day	April 21, 1991
Field work period	-
Enumeration forms used	There are 2 forms to be completed by households or individuals: (1) Form A - Census Household Schedule; and (2) Form A(P) - completed by persons in certain circumstances. The information from Form A is used here.
Type of field work	Direct and self-enumeration
Respondent	(a) The head, or other person acting as head, of a private household; (b) The person in charge of a collective household (institution); (c) The master or other person in charge of a vessel in waters within the jurisdiction of Ireland at midnight on the ni
Coverage	-
Microdata sample characteristics	1991
Sample microdata source	Central Statistics Office
Sample design	A 10% random sample of the recoded household records from each county was selected. The records within each county were sorted randomly before output to the sample file.
Sample unit	Households
Sample fraction	10 %
Sample fraction (private households)
Sample fraction (institutional households)
Sample size (person records)	353.149
Sample size (private households)
Sample size (institutional households)
Sample weights	Self-weighting (expansion factor=10)
Units identified	1991
Dwellings	No
Vacant units	No
Households	Yes
Individuals	Yes
Group quarters	Yes
Settled/unsettled Population
Special populations
Unit definitions	1991
Dwellings	A dwelling unit is defined as living accommodation which is occupied or, if vacant, is intended for occupation, by one household.
Households	A private household is defined as a group of persons living together (usually but not necessarily related), jointly occupying the whole or part of a private dwelling house, flat, or temporary dwelling and sharing a common budget. A person who lives alone or a person who occupies only part of the living accommodation but does not normally share a common budget with the other occupants is regarded as a separate household.
Institutional population
Group quarters	A non-private household is a boarding house, hotel, guest house, barrack, hospital, nursing home, boarding schools, religious institution, welfare institution, prison, or ship, etc. However, proprietors and manager of hotels, principals of boarding schools, persons in charge of various other types of institutions and members of staff who, with their families, occupy flats on the premises are considered as private households.
Unsettled population