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World Health Organization
Uploaded on Tuesday 21 Feb 2012
Proportion of population with improved drinking water supply in 2002
Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
Access to improved drinking water is estimated by the percentage of the population using the following drinking water sources: household connection, public standpipe, borehole, protected dug well, protected spring, or rainwater collection.