PRS Online Country Data
This firm takes data from the World Bank, IMF, OECD, the CIA and others and resells it here on-line. They offer data from more than 160 countries, and for each country they have some 50 annual series from the last 10 years. Coverage includes domestic economic conditions, international transactions, geographical and political data, and various social indicators. They also offer risk ratings and macro forecasts.
While being a subscriber is more efficient for bulk purchases, it is possible to purchase one series or a group of series. The price varies according to a number of factors.