2. Evaluation of Population and Housing Census of 2004 in Tunisia
Nadia Touihri
Statisticien Engineer
Workshop on the 2010 World Programme on Population and Housing Censuses; Census Evaluation and Post Enumeration
Amman – Jordan November 2010

3. Plan Introduction Exhaustivity and Pre Enumeration step
Exhaustivity and Enumeration step
Exhaustivity and Post Enumeration step
Learned lessons

4. Introduction Tunisian Census History 1921: First Census
1926, 1931, , 1956, 1966, 1975, 1984, 1994
2004: Last Census
2014: Next Census

5. Introduction Legal base of Census
Tunisian NIS is the first administrative and technical responsble of Census.
Governemental authority fixed the date of reference (28 april 2004) and made a decret to create national and regional commissions in order to follow different census operations.

6. Introduction The System of 2004 Census: three steps;
Pre Enumeration ( 6 months before census with supervisors ; duration :about 4 months and a half)
Enumeration ( data collection )
Post Enumeration including data exploitation and results diffusion.

7. Exhaustivity and Pre Enumeration step ( oct 2003 – janv 2004 )
Supervisors divided Tunisian Territory in geographic
Areas well limited on field ( districts ), each
district contain about 70 household. This repartition
helped to :
Prepare and facilitate enumerators work ( district document prepared by supervisors is considered as a guideline for enumerator )
Prepare means of control for enumeration step

8. Exhaustivity and Enumeration Step ( Avril 2004 ) (CNTD)
Enumerators deal with recapitulation statistics:
Number of localities
Number of housing
Number of household
Present resident population by gender.
Absent resident population by gender
Visitors by gender

9. Exhaustivity and Enumeration Step ( Avril 2004 ) (CNTD)
Manual Data Control of district documents with data of reference documents ( documents of pre enumeration).
Return on the field to verify omissions and complete housing and household missed

10. Exhaustivity and Post Enumeration Step ( Avril 2004 ) (CNTD)
Supervision and verification of control operation after computing data of reference and districts documents  we returned on field when it was necessary
Besides of the comparaison with statistics of:
Previous census
Labor force survey
Administrative statistics ( education, housing,….)

11. Learned Lessons
Rare cases of omissions was in urbain places and was corrected by control agents .
Another small differences existed between the two steps was a result of pre - interview methodology : supervisor made a rapid pre – interview by asking light questions (Number of housing, Number of household in the housing) without insisting on technical concepts fixed by NIS.