Source: The World Bank
From publication website:
World Development Indicators 2012 is a compilation of relevant, high-quality, and internationally comparable statistics about development and the quality of people’s lives. Organized around six themes—world view, people, the environment, the economy, states and markets, and global links—it aims to put data into the hands of policy makers, development specialists, students, and the public. We encourage and applaud the use of the data presented here to help reduce poverty and to solve the world’s most pressing development challenges. The full dataset used to produce World Development Indicators contains more than 1,000 indicators for 216 economies, with many time series extending back to 1960.