Context: Drinking water supply and sanitation in Egypt is characterised by both achievements and challenges. Among the achievements are an increase of piped water supply between 1990 and 2010 from 89% to 100% in urban areas and from 39% to 93% in rural areas despite rapid population growth, the elimination of open defecation in rural areas during the same period, and in general a relatively high level of investment in infrastructure. Access to an improved water source in Egypt is now practically universal with a rate of 99%. About one half of the population is connected to sanitary sewers.

Question: What basic part of civilization has been characterized by achievement and challenges?
Answer: Drinking water supply and sanitation

Question: From 1990 to 2010 what was improvement in piped water supply to urban areas?
Answer: 89% to 100%

Question: From 1990 to 2010 what was improvement in piped water supply to rural areas?
Answer: 39% to 93%

Question: Currently how much of Egypt's population is connected to sanitary sewers?
Answer: 99%