The ratio of external debt to total exports of goods, services and primary incomes was even more dramatic for all four countries. This is a proxy of the capacity of these economies to service their growing external obligations. Between 2010 and 2017, the ratio increased from 75%, 99.6%, 97.6% and 125% for Egypt, Tunisia, Morocco and Jordan re2spectively, to 190%, 178%, 125% and 198% in 2017. All the figures exceed the 77% limit that, in the World Bank’s reckoning, foreign debt has a negative impact on growth.