The ABI/INFORM (ProQuest) database has been enhanced recently with several hundred country reports and data from the Economist Intelligence Unit and Oxford Analytica.
They can be viewed by clicking the Browse tab after logging on to ABI/INFORM Complete. Look under the Country Reports Heading. Economist Intelligence Unit (EIU) Country Data, for example, "contains 370 economic variables over a 50 year period (1980-2030), actual and forecasted. Reports include comprehensive information such as GDP, import/export statistics, industry data, monetary indicators, liquidity metrics, and more." This is for the G20 countries. Data can be downloaded into a spreadsheet.