World Trade (1980-2005, annual data) is a matrix of international trade flows, created from data reported by member countries to the United Nations Statistical Office, broken down by trading partner and commodity (SITC code). Value of trade is measured in '000 $US (thousands U.S dollars).
Contains statistics to measure progress and demonstrate the effectiveness of development programs in traditional domains of debt, demographics, and national accounts, but in new areas such as biodiversity, information, communications, technology, and measures of government and business performance. The database includes more than 800 indicators in over 80 tables organized in six sections: World View, People, Environment, Economy, States and Markets, and Global Links.
Constructed by Robert Summers and Alan Heston of the University of Pennsylvania, together with the late Irving Kravis, the Penn World Tables are the definitive source for real national accounts data. The national accounts for each country, initially in their own currencies, are adjusted using detailed price data to obtain real national accounts in a common currency (U.S. dollars) across countries. These data are invaluable for making comparisons of Gross Domestic Product across countries, and for all manner of research on development and growth.