The Statistical Yearbook is an annual compilation of a wide range of international economic, social and environmental statistics on over 200 countries and areas, compiled from sources including UN agencies and other international, national and specialized organizations. The 57th edition contains data available to the Statistics Division as of 31 December 2013 and presents them in 62 tables on topics such as: agriculture, forestry and fishing; communication; development assistance; education; energy; environment; finance; gender; international merchandise trade; international tourism; labour force; manufacturing; national accounts; population; prices; and science and technology. The number of years of data shown in the tables varies from one to ten, with most tables covering the period up to 2011 or 2012. Accompanying the tables are technical notes providing brief descriptions of major statistical concepts, definitions and classifications.