1. 1 Tanzanian Experience on manufacturing Statistics. Williamdm Ndoss National Bureau of Statistics Dar es Salaamia Tanzania

2. 2 The manufacturing sector contributes about 8.7% of the total GDP in Tanzania according to 2007 Economic survey report. Estimation of sector contribution to GDP

3. 3 Source of data Industry Census Annual Survey of Industrial production Quarterly Survey of Industrial production

4. 4 Industry Census Last Industry Census was Conducted in 1989.

5. 5 Annual Survey of Industrial production The survey covers 10 persons or more establishments engaging. About 700 establishment are surveyed

6. 6 Quarterly Survey of Industrial production The survey is limited to manufacturing industry and covers almost all- manufacturing establishments engaging 50 persons or more. About 400 establishment are surveyed

7. 7 Activity classification and the ISIC Tanzania is using ISIC Rev. 3.

8. 8 Statistical Unit The Statistical Unit is the Establishment.

9. 9 - Tanzania has a central register of establishment (CRE) which is updated annually. - Business survey was conducted 2008, which saved as an input to update CRE. The Register of Establishments

10. 10 Uses of registers Provide frame for undertaking surveys

11. 11 Main Derived Statistics Producer Price Index (PPI) Production Index of Manufacturing Industry (PIMI)

12. 12 Methods and techniques of data collection Mail enumeration

13. 13 Imputations Substitution: Relies on the availability of comparable data

14. 14 Challengers Low response rate Misuse of resources - Duplication of efforts

15. 15 Dissemination Through NBS website: WWW.nbs.go.tz WWW.nbs.go.tz National Website: www.tanzania.go.tz www.tanzania.go.tz Different reports.