According to the Global Education Digest 2010 published by Unesco, in the late 1990s, developing countries began to recover some of the educational ground lost in the 1980s, when enrolments stagnated or even declined in sub-Saharan Africa, East Asia and the Pacific, Central and Eastern Europe and Central Asia. In fact, the pace of progress accelerated since 2000 and if trends between 2000 and 2008 continue, the increase in school life expectancy in the current decade will be three times the level achieved in the 1970s.In sub-Saharan Africa, school life expectancy nearly doubled from 4.4 years to 8.4 years in the past 30 years. Despite this progress, the region has the lowest number of school years — almost half of the number of years in North America and Western Europe (16.0 years).