Data used in research for International Relations comes from a multitude of sources including: government organizations, international organizations, and individual researchers/research groups. This is best illustrated by the many organizations from which Gapminder obtained data (for details, see https://www.gapminder.org/data/).
Unfortunately, there is not one comprehensive data source that will address all the topics for this assignment. The sources listed below are provided as starting points to give you a sense of the types of data available. Many of you will have to locate additional sources for your data. International/intergovernmental organizations are great places to start. For example, if you are researching trade, you might check the website of the World Trade Organization and other trade-related organizations to see what statistics they publish.
Selected Statistical Sources for IR