However, it is important to note that regional averages may mask wide differences among countries - China, for example, is an outlier in its region. In Latin America, for example, the share of STEM graduates was 22.8 per cent of the total in Mexico, but only 10.5 per cent in Brazil. In Africa, the share was 29.5 per cent in Ethiopia, but 8.9 per cent in Ghana. Numbers increased by 43 per cent in the United States, 53 per cent in Poland and 27 per cent in the Republic of Korea. The R&D gap also affects the capacity of countries to undertake foresight exercises that allow them to chart the path of their STI development on their own terms.