World Bank Open Data
Mo Data stashed this in Data Sources
Here are a few sets:
Research Datasets and Analytical Tools: Various specialized datasets compiled for World Bank research activities, sorted by topic. Many datasets are in raw unprocessed formats, and are specific in scope and coverage
Manufactures Unit Value Index (MUV Index) - A proxy for the price of developing country imports of manufactures in U.S. dollar terms, used to assess cost escalation for imported goods. Update twice a year, the index is a weighted average of export prices of manufactured goods for the G-5 economies, with local-currency based prices converted into current U.S. dollars using market exchange rates. Contains historical data from 1960 through 2007 and projections through 2020.
International Debt Statistics: Summary and Country Tables - Special summary tables present cross-country comparisons of key debt statistics and composition of total external debt stocks.
And there are a load more...
I could spend a day in the Climate Change Knowledge Portal page. Thanks!