Although conditions are drastically better in cities, all of Ethiopia suffers from poverty and poor sanitation. However, poverty in Ethiopia fell from 44% to 29.6% during 2000–2011, according to the World Bank. In the capital city of Addis Ababa, 55% of the population used to live in slums. Now, however, a construction boom in both the private and the public sector has led to a dramatic improvement in living standards in major cities, particularly in Addis Ababa. Notably, government-built condominium housing complexes have sprung up throughout the city, benefiting close to 600,000 individuals. Sanitation is the most pressing need in the city, with most of the population lacking access to waste treatment facilities. This contributes to the spread of illness through unhealthy water.