The 55th edition of the yearbook contains statistics on the external trade performances of 179 individual countries or reporting customs areas, in terms of current value, volume and price; the importance of trading partners; and the significance of individual commodities imported and exported for the year 2005. The yearbook is published in two volumes containing i) data tables for individual countries or areas, and ii) data tables for the total trade of certain commodities analysed by regions and countries. In this edition, commodities are classified according to SITC Revision 3, and regional groupings are given in accordance with the regions used in the framework of the Millennium Development Goal (MDG) Indicator Database.