ocw.mit.edu – of returning visitors, while Eastern Europe and East Asia have the highest percentages of new visitors. Prior visits Western Europe Latin America South Asia Eastern Europe MENA Pacific Sub-Sah. Africa Central Asia Caribbean All regions 33.5% 31.4% 31.6% 46.9% 37.8% 44.8% 57.6% 50.0% 42.9% 39.4% 66.5% 68.6% 68.4% 53.1% 62.2% 55.2% 42.4% 50.0% [...]