The statistics appearing in the Bulletin are, except where otherwise stated in the notes to the tables, obtained by the Statistics Division of the United Nations from official sources in the various countries. Data and metadata have been obtained from the following sources and references:

1. Food and Agriculture Organization of the United Nations, FAO Statistical Yearbook and FAO Production Yearbook, (discontinued) (Rome).

2. International Civil Aviation Organization Yearbook, The ICAO Integrated Statistical Database (Montreal).

3. International Labour Organisation, Current International Recommendations on Labour Statistics, 1988 Edition (Geneva).

4. International Monetary Fund, International Financial Statistics Yearbook (annual) (Washington, D.C.).

5. Kendall, Sir Maurice G., and William R. Buckland (1982) A Dictionary of Statistical Terms, Fourth Edition (London, Longman Group).

6. Oxford University Press The Concise Oxford Dictionary of Current English, Seventh Edition (1982) (London).

7.United Nations, Central Product Classification (CPC). Version 1.1. Series M, No. 77, Ver. 1.1 (United Nations publication, Sales No. E.03.XVII.3).

8.______________, Classification by Broad Economic Categories Defined in terms of SITC, , Rev.3, Series M, No. 53, Rev. 3 and Corr. 1 (United Nations publication, Sales No. E.89.XVII.4).

9.______________, Classifications of Expenditure According to Purpose, Classification of the Functions of Government (COFOG), Classification of Individual Consumption According to Purpose (COICOP), Classification of the Purposes of Non-Profit Institutions Serving Households (COPNI), Classification of the Outlays of Producers According to Purpose (COPP), Series M, No. 84 (United Nations Sales No. E.00.XVII.6).

10.______________, Demographic Yearbook (annual), Statistics Division, Series R (United Nations sales publication).

11.______________,International Merchandise Trade Statistics — Concepts and Definitions, Statistics Division, Series F, No. 52, Rev. 2 (United Nations publication, Sales No. E.98.XVII.16).

12._____________, Energy Statistics — Definitions, Units of Measure and Conversion Factors. Series F, No. 44 (United Nations publication, Sales No. E.86.XVII.21).

13._____________, International Recommendations for Construction Statistics , Statistics Division, Series M, No. 47, Rev. 1 (United Nations publication, Sales No. E.97.XVII.11).

14.____________, International Recommendations for Industrial Statistics. Statistical Office, Series M, No. 48, Rev. 1 (United Nations publication, Sales No. E.83.XVII.8).

15.______________, International Standard Industrial Classification of All Economic Activities (ISIC), Revision 4. Series M, No. 4, Rev. 4 (United Nations publication, Sales No. E/F.08.XVII.25).

16.______________, International Standard Industrial Classification of All Economic Activities, Third Revision. Statistical Office, Series M, No. 4, Rev. 3 (United Nations publication, Sales No. E.90.XVII.11).

17.______________, International Standard Industrial Classification of All Economic Activities. Series M, No. 4, Rev. 2 (United Nations publication, Sales No. E.68.XVII.8).

18.______________, Multilingual Demographic Dictionary, English Section . Department of Economic and Social Affairs, Population Studies, No. 29 (United Nations publication, Sales No. E.58.XIII.4).

19. _____________, Principles and Recommendations for Population and Housing Censuses , Revision 1. Statistics Division, Series M, No. 67, Rev. 1 (United Nations publication, Sales No. E.98.XVII.1).

20. _____________, Principles and Recommendations for a Vital Statistics System . Series M, No. 19, Revision 1 (United Nations publication, Sales No. E.73.XVII.9).

21. _____________, 1977 Supplement to the Statistical Yearbook and the Monthly Bulletin of Statistics — Methodology and Definitions. Statistical Office, Series S, Suppl. 2 and Series Q, Suppl. 2 (United Nations publication, Sales No. E.78.XVII.10).

22._____________, Commission of the European Communities, International Monetary Fund, Organisation for Economic Cooperation and Development and World Bank (United Nations and others, 1994). System of National Accounts 1993 (SNA 1993), Series F, No. 2, Rev. 4 (United Nations publication Sales No. E.94.XVII.4).

23. World Health Organization, International Statistical Classification of Diseases and Related Health Problems , Tenth Revision (ICD-10), vol. 1 (Geneva).