Sample characteristics: Romania
| Census/survey characteristics | |
| Type | Census |
| Title | Population and Housing Census |
| Statistical agency | National Institute of Statistics (NIS) |
| Population universe | All Romanian citizens inside Romania or temporarily abroad, and foreigners or people without citizenship who have legal residence in Romania |
| De jure or de facto | De jure |
| Census/survey day | 1977-01-05 00:00:00 |
| Field work period | January 5-12, 1977 |
| Questionnaire | Three forms: LP- building, dwelling, persons; UC- collective living units, hostel type; and UH- collective living units hotel type. |
| Type of fieldwork | Direct (face to face) interview |
| Estimated undercount | 2.74% |
| Microdata sample characteristics | |
| Sample design | Systematic sample of every tenth household after a random start, drawn by the country |
| Sample fraction | 0.1 |
| Sample size (person records) | 1937021 |
| Sample weights | Self-weighting (expansion factor=10) |
| Units identified in microdata | |
| Dwellings | Yes |
| Vacant units | Not available in microdata sample |
| Households | Yes |
| Collective dwellings | No |
| Smallest geography | County |
| Unit definitions | |
| Dwellings | A building in unit, comprising a room or a suite of rooms for habitation, situated at the same floor or different floors, provided, generally, with accessories (kithen, bathroom, etc.), or other independent utilities designated for use, having separate entrance from the stairs case, from the yard or from the street, which were build up, transformed or adapted to be usable by a single household |
| Households | A group of two or more persons, living usually together, having generally relative relations and are commonly managing their economy (together are sharing the food supply and consumption, and other essential for living) |
| Collective dwellings | The collective living unit, hostel type, comprises one or more distinct buildings-under the unique administration, at the unique address- intended and designed for collective permanent living, by many persons, generally not related among them, but who are united for joint purposes and interests, and who commonly are using some spaces and facilities (bathrooms, kitchens, dining rooms, toilet, etc.). The collective living unit, hotel type, comprises one or more buildings-under the unique administration, at the same address- designated to be occupied temporarily by one or more persons, usually temporarily present in the place (who arrived on mission, excursion, vacationing, medical care etc.), provided with spaces and facilities commonly used (as bath rooms, kitchens, dining rooms, toilets, etc.). |
| Census/survey characteristics | |
| Type | Census |
| Title | Population and Housing Census |
| Statistical agency | National Commission for Statistics (NCS) |
| Population universe | The entire population of the country |
| De jure or de facto | De jure |
| Census/survey day | January 7, 1992 |
| Field work period | 7 - 14 January |
| Questionnaire | PL - Persons, private dwelling; PC - Persons in collective units - hostel type; PH - Persons in collective units - hotel type |
| Type of fieldwork | Direct (face to face) interview |
| Estimated undercount | 0.33% |
| Microdata sample characteristics | |
| Sample design | Systematic; every tenth household after a random start |
| Sample fraction | 0.1 |
| Sample size (person records) | 2238578 |
| Sample weights | Self-weighting (expansion factor=10) |
| Units identified in microdata | |
| Dwellings | Yes |
| Vacant units | Not available in microdata sample |
| Households | Yes |
| Collective dwellings | No |
| Smallest geography | County with 20,000+ population |
| Unit definitions | |
| Dwellings | Built unit generally endowed with annexes (kitchen, bathroom), functionally independent, with separate entrance |
| Households | Persons living together, generally relatives, with a common income and expenditure budget |
| Collective dwellings | One or more distinct building inhabited by many persons united for joint purposes and interests and who share some spaces and facilities |
| Census/survey characteristics | |
| Type | Census |
| Title | Population and Housing Census |
| Statistical agency | National Institute of Statistics (NIS) |
| Population universe | Population did not include Romanian citizens with a legal residence in Romania who left the country more than one year ago, but it included foreign citizens who established their usual residence in Romania more than one year ago. |
| De jure or de facto | De jure |
| Census/survey day | March 18, 2002 |
| Field work period | 18 - 27 March |
| Questionnaire | PL - Persons, private dwelling; PC - Persons living in collective units - hostel type; PH - Persons in collective units - hotel type |
| Type of fieldwork | Direct (face to face) interview |
| Estimated undercount | 0.17% |
| Microdata sample characteristics | |
| Sample design | Systematic; every tenth household after a random start |
| Sample fraction | 0.1 |
| Sample size (person records) | 2137967 |
| Sample weights | Self-weighting (expansion factor=10) |
| Units identified in microdata | |
| Dwellings | Yes |
| Vacant units | Not available in microdata sample |
| Households | Yes |
| Collective dwellings | No |
| Smallest geography | County with 20,000+ population |
| Unit definitions | |
| Dwellings | Built unit generally endowed with annexes (kitchen, bathroom), functionally independent, with separate entrance |
| Households | Persons living together, generally relatives, with a common income and expenditure budget |
| Collective dwellings | One or more distinct building inhabited by many persons united for joint purposes and interests and who share some spaces and facilities |
| Census/survey characteristics | |
| Type | Census |
| Title | 2011 Population and Housing Census |
| Statistical agency | National Institute of Statistics (NIS) |
| Population universe | The usual resident population, including all persons that have their usual residence in Romania, irrespective other characteristics (legal residence, citizenship, country of birth), at the Census reference date. |
| De jure or de facto | De jure |
| Census/survey day | October 20, 2011 |
| Field work period | 20-31 October 2011 |
| Questionnaire | LC- Dwelling, Building. G- Household. P-Individual person form. PPI- Persons left for a long period of time. TP- Temporarly present person. M- Person 15 years and over living abroad. SC- Collective living quarter. |
| Type of fieldwork | Direct (face to face) interview |
| Microdata sample characteristics | |
| Sample design | Systematic sample of one in 10 households given a random start, drawn by the National Institute of Statistics. |
| Sample fraction | 0.1 |
| Sample size (person records) | 1991024 |
| Sample weights | Self-weighting (expansion factor=10) |
| Units identified in microdata | |
| Dwellings | Yes |
| Vacant units | Not available in microdata sample |
| Households | Yes |
| Collective dwellings | No |
| Smallest geography | County |
| Unit definitions | |
| Dwellings | Built unit generally endowed with annexes (kitchen, bathroom), functionally independent, with separate entrance |
| Households | Persons living together, generally relatives, with a common income and expenditure budget |
| Collective dwellings | One or more distinct buildings located at the same address and intended for living for different time periods by relatively large groups of people generally unrelated by kinship, which usually gathered for common purposes and interests and could share certain places and facilities (batherooms, kitchens, dining rooms, etc.) |