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IPUMS Global WorkshopIPUMS – Global Workshop58th WSC International Statistical Institute

Innovations for the 2010 Brazilian Population Census

Eduardo Pereira Nunes – President of IBGEd d @ib [email protected]

Dublin, Ireland, 21st August, 2011

Brazil: 27 States - 5,565 Municipalities - 8,5 million km2

Field works: 1st August to 31st October 2010e d o s ugust to 3 Octobe 0 0 Last quality control of field operation: November 1st – 24th

Imputation of population in closed housing units: November 25th - 26th

First results: Nov 29th 2010 Population: 190 732 694 First results: Nov 29th 2010 – Population: 190,732,694 Final results: April 29th 2011 – Population: 190,755,799

Database: 1st December to 31st January 2011

≠ 0,01%

Figures from Census 2010Brazilian population 190,755,799Housing units surveyed 67,569,688Occupied housing units 56,573,419Cl d h i it 899 152Closed housing units 899,152Not occupied housing units 6,163,846Seasonally vacant housing units 3 933 271Seasonally vacant housing units 3,933,271Address File (CNEFE) 83,026,526

2010 Population Census Main steps2010 Population Census – Main steps

2010 Census Mapping

Delineation of 314,018 Enumeration Areas (EA)

2010 Census Mapping All 314,018 enumerator areas have a cartography

geocodinggeocoding Building of an integrated Territorial Database to

support 2010 Census, from the planning to the ll i d di i icollection and dissemination steps:

National Address File associated to the geocode of urban streets or rural addresses for each enumeration areas;G t i l b d l li it f h M i i lit Geometrical urban and rural limits for each Municipality

• SISMAP – Brazilian System for Census Mapping

• IT tool developed for municipal mapping in a single continuous spatial database;

• Input data from several sources of imagery data, like GIS, GPS, p g y , , ,satellite imagery, digital and aerial photography

Handheld Devices

Evolution of Geo-Technologies

Low Cost ImagesHandheld Devices(PDA) GIS/Web

Growing Application at IBGE for both Cartography and Statistics

Brazilian Geospatial StatisticsBrazilian Geospatial Statistics

Pre-Census (from March to June 2010)

Pre-Census in 224,402 Enumeration Areas (EA)

Personal Digital Assistant (PDA) for the Pre-Census application: Review and updating maps, streets and housing units of urban p g p , g

Enumeration Areas performed by 30,000 supervisors The application was developed in Windows Mobile, using

SQLServer CE 2005, Framework 2.0 and GeopadSQ Se e C 005, a e o 0 a d Geopad Loaded in 30,000 PDAs

Parameters for Census Data Collection

Based on information of the Enumeration Areas and data Based on information of the Enumeration Areas and data

collected during Pre-Census, some acceptance parameters of

quality control were created for questionnaires collected by thequality control were created for questionnaires collected by the

interviewers during the Census, since 1st August to 31st

October;;

These parameters were loaded into control and monitoring IT

System of data collection being used by supervisors to assessSystem of data collection being used by supervisors to assess

the work of Census enumerators;

Address list raised by Pre-Census was used to route control ofAddress list raised by Pre Census was used to route control of

enumerators and for coverage control;

Data Quality was controlled for each Enumeration Area,Data Quality was controlled for each Enumeration Area,

calculating type of housing units rates, average number of

persons per housing unit, sex rates, age, etc.

QuestionnairesCensus Data Collection

All 56,5 million occupied housing units were surveyed to collect characteristics of the dwellings and people living there.

IBGE used two questionnaires: q1. short form, with 24 questions for housing unit and 13 for people;2. long form (sample) with 38 questions for housing unit and 69 for

people (including same questions of the short form). p p ( g q ) The choice of questionnaire was done by random selection in

the PDA during the Census time. The average sampling rate is 11% The rates depend on the The average sampling rate is 11%. The rates depend on the

number of inhabitants of the municipality and varies from 5% (more then 500,000) to 50% (less then 2,500 inhabitants).

190 000 PDAs were used by enumerators to collect data 190,000 PDAs were used by enumerators to collect data Data confidentiality – enumerators do not unlawfully download

the information from the PDA. After ending an interview, data are encrypted and can only be transferred to the IBGE through aencrypted and can only be transferred to the IBGE through a secure network.

ICT in Data Collection

150 000 LG 750Q t h l k d (Ph 3G) 150,000 LG-750Q, smartphones locked (Phone, 3G) to be used solely as data collection equipment and programs certified by the IBGE

70,000 PDA MIO-P550B (already used in 2007)

Data Collection Local Software Applications

Data collection: Running on the PDA in order to record the presential

interviews, identify the households answering by Internet , y g y(token) and update the Address List.

Data collection / Internet WEB application to fill out the forms by the households.

Supervision:Running on the PDA to evaluate and control the enumerators Running on the PDA to evaluate and control the enumerators work quality.

SIGPC - Management system for data collection g yStation Running on the notebook supports for all decentralized

operations supported administrative and operational tasks andoperations, supported administrative and operational tasks and the communication with the Central System

System developed in Windows Mobile and TotalCross

Data Collection Questionnaires Application

System developed in Windows Mobile and TotalCross

Developed in Windows Mobile, SQLServer CE 2005,

Data Collection Supervision Application

Framework 2.0, Geopad Management Indicators and results of the previous

visitsvisits

SIGC - Data Collection Management Indicators System

Data Collection Local and Central Control Application

SIGC - Data Collection Management Indicators System. Monitoring evolution of data collection (coverage, quality and time of collecting) in each Enumerator Area.

7 000 Census Data Collection Stations with notebooks 7,000 Census Data Collection Stations with notebooks Local application in data collection station running at notebooks under Windows 7 Interaction of PDAs was made solely on these notebooks

N t k f h i ti ith th C t l P i Network of synchronous communication with the Central Processing Collection Stations without Internet connection, communication with the Central

Processing was done through USB drives (flash drives).

SIGC is an essential tool for the administrative operational SIGC is an essential tool for the administrative, operational organization and quality control of data collection for: communications with Central Datacenter

reports for quantitative and qualitative evaluation of data collected reports for quantitative and qualitative evaluation of data collected WEB application running in the main Datacenter support

management reports, summaries, indicators and cartograms

IBGEHeadquarter Directors of

IT, Cartography and Technical

Directors of 27 States

27 Coordinators of ICT, Operational Cartography

222 Operational Area Coordinators 222 ICT Coordinators of

Operational, Cartography and Technical 7.000 Local Offices

1,281 Sub-regional supervisors and manager ofGroup of Local Offices

222 ICT Coordinators of Group of Municipalities

IBGE7,000 Municipality Coordinators of Local Office (quality control of collected data and send data to Datacenter)

(quality control of Municipality collected data)

190,000 enumerators23,000 supervisors (quality control of field operation)

ICT in the 7,000 Census Collection Stations Notebook: 1 per 5 supervisors (8,687 notebooks)

Blocked by “Content Advisor” Router: 1 per Local Office (7,000 WiFi routers) Internet (where possible) or flash drive for physical transport of information for

another place with access on Internetanother place with access on Internet 150,000 LG-750Q, smartphones locked (Phone, 3G) to be used solely as data

collection equipment and programs certified by the IBGE 70,000 PDA MIO-P550B (already used in 2007)( y )

Data Collection Central Control Application

gle

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GPS

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PDA

SIGC - Data Collection Management Indicators System

Data Collection Central Control Application

SIGC Data Collection Management Indicators System

PDA with GPS and use of Google imagery

Cartography: Satellite imagery, Google and PDA with GPS

Data Collection - Indigenous Populationata Co ect o d ge ous opu at o

Cartography: Satellite imagery

Slum of Rio de Janeiro

Data volumesData volumes

TRANSMISSIONS 25,029,015(files)

3,069,097.91 MB(transmitted data)(files) (transmitted data)

Pre Census 6,818 stations 131,303 20,957.27 MB

Data Collection 314,017 E.A. 10,347,094 2,783,161.34 MB

Summary 6,831 stations 540,016 10,340.00 MB

Supervision 313,972 E.A. 13,658,485 251,090.00 MB

Post Census 1,921 stations 9,222 812.23 MB

Administrative 6,809 stations 312,816 2,680.00 MB

Internet forms 2,290 stations 30,079 57.07 MB

CENTRAL DATABASE 281(tables)

397,517.00 MB(data store)

2010 Census

Quality of data released in 27th november 2010Quality of data released in 27th november 2010

Demographic Density - 2000

Demographic Density - 2010

Brazil - 50 years agoAge-Sex Structure : Age-Sex Structure :

Africa 2005 and Brazil 1960

Male Female

Africa Brazil

2010 Census – timely and quality data

Age-Sex Structure:

Brazil 40 years aheadAge Sex Structure:

France 2005 and Brazil 2050

Male Female

France Brazil

Estrutura Etária por SexoTailândia -PA

Estrutura Etária por SexoTailândia - PA

2010 Census – timely and quality data

Homem Mulher

2000Homem Mulher

2000/2010

Estrutura Etária por SexoGuaribas - PI

Estrutura Etária por SexoGuaribas - PI

2010 Census – timely and quality data

Homem Mulher

2000Homem Mulher

2000/2010

2010 Census – timely and quality data

Distribution of population by income classesclasses,

starting by USD 2 00 per daystarting by USD 2.00 per day

Data released in 29th April 2011Data released in 29 April 2011

Income and Fertility

Income and Fertility

2010 Census: data released

EducationIlliteracy rate of persons 5 years old and over by age group - 2010

Illiteracy rate of persons 5 years old and over (%) Brazil and Major Regions

Education

Total15 - 19

years20 - 29

years30 - 39

years40 - 49

years50 - 59

years

60 years old and

Major Regions Total

Age groups

5 - 9 years

10 - 14 years

15 years old and over

years years years years yearsover

Brazil 10.9 31.6 3.9 9.6 2.2 3.4 6.6 9.9 13.8 26.5North 14.4 43.9 7.0 11.2 3.3 4.6 8.3 13.4 20.0 35.7

Northeast 19.8 40.6 7.1 19.1 4.1 7.4 15.2 22.4 30.1 47.1Southeast 6.5 24.1 1.8 5.5 1.1 1.4 2.8 4.7 7.4 17.1

South 6.2 24.1 1.3 5.1 0.9 1.1 2.4 4.1 7.1 16.6

Central West 8 4 26 8 1 9 7 2 1 1 1 7 3 8 7 1 12 1 26 8Central West 8.4 26.8 1.9 7.2 1.1 1.7 3.8 7.1 12.1 26.8

Source: IBGE. Preliminary results o f the 2010 Population Census (Universe).

New ways of geospatial data disseminationNew ways of geospatial data dissemination

Basic units ofBasic units ofdissemination:• enumerator areas

New ways ofdissemination:• Street• Blocks• Geometric areas

Next steps

1. Release final data on short form questionnaire –October 2011

2. Release first data on long form questionnaire (sampling) – November 2011

3. Release data of almost 350 Municipalities where 2010 Census found enumeration areas under risk of natural disasters, or slum areas - Decemberof natural disasters, or slum areas December 2011

4. Release microdata of long form questionnaire (sampling) – April 2012

Brazilian Census 2010Prize Unesco / NetExplorateur 2011