The United Nations Statistical Yearbook is an annual compilation of a wide range of international economic, social and environmental statistics for over 200 countries and areas of the world, compiled from sources including UN agencies and other international, national and specialized organizations. The 51st issue contains data available to the Statistics Division as of March 2007 and presents them in 69 tables on topics such as: agriculture balance of payments communication development assistance education energy environment finance industrial production international merchandise trade international tourism labour force manufacturing national accounts nutrition population prices research and development transport wages The number of years of data shown in the t"