The World Bank World Development Indicators (WDI) is the primary World Bank collection of development indicators, compiled from officially-recognized international sources. It presents the most current and accurate global development data available, and includes national, regional and global estimates.These data were first provided by the UK Data Service in February 2004. The following topics are covered:people: population and demographics; labour and employment; poverty and income distribution; education; healthenvironment: land use and agricultural production; energy production and use; urbanization; emissions; adjusted savingseconomy: national accounts (local currency); national accounts (US dollars); derived national accounts; purchasing power parity; trade; government finance; monetary; balance of payments; external debtstates and markets: investment climate; business environment; financial depth; tax and trade policies; defense expenditures and arms trade; military expenditures and arms trade; transport, power, and communications; information and technologyglobal links: investment and trade; financial flows; development assistance and aid; migration; travel and tourism