The map includes values for the 100 countries with the highest number of active researchers over time and with a population of at least 0.5 million people. Most countries have emigration rates below 40 per 1000 academics. Sudan, Malawi, Zimbabwe, El Salvador, and the Dominican Republic have the highest rates. Other notable cases with high scholarly emigration rates include Canada, Peru, Switzerland, Ireland, Kenya, Uganda, Saudi Arabia, Oman, Yemen, Georgia, Bangladesh, and Nepal.