|All queries or rights and licenses including subsidiary rights should be addressed to United Nations Publications, 405 E. 42nd Street, New York, NY 10017, United States of America; email: [email protected]; website: un.org/publications. Note: The designations employed and the presentation of the material in this publication do not imply the expression of any opinion whatsoever on the part of the Secretariat of the United Nations concerning the legal status of any country or territory or of its authorities, or concerning the delimitations of its frontiers. The term “country” as used in the text of the present report also refers, as appropriate, to territories or areas. The designations of country groups in the text and the tables are intended solely for statistical or analytical convenience and do not necessarily express a judgment about the stage reached by a particular country or area in the development process. Mention of the names of firms and commercial products does not imply the endorsement of the United Nations.