Few are covered by social protection systems, and they face the constant risk of slipping back into poverty. Much work needs to be done to raise productivity, promote sustainable structural transformation and expand social protection systems for the poorest and most vulnerable workers and their families. The most significant progress has been made in Eastern Asia, where the proportion of people in vulnerable employment has dropped from 71.2 per cent in 1991 to 39.6 per cent in 2015.