  
<prompt> Household drinking water by residence
 Percent distribution of households by source of drinking water 
 [["", "Piped water into dwelling/yard/ plot/neighbour's yard", "Piped to neighbour", "Public tap/standpipe", "Tubewell or borehole", "Protected well/spring, rainwater, or bottle water", "Unimproved source"], ["Tanzania Urban", 31, 29, 12, 3, 13, 13], ["Tanzania Rural", 7, 8, 20, 2, 15, 49], ["Tanzania Total", 15, 15, 17, 2, 14, 37], ["Mainland Urban", 30, 29, 12, 3, 13, 13], ["Mainland Rural", 6, 8, 20, 2, 15, 50], ["Mainland Total", 14, 15, 17, 2, 15, 38], ["Zanzibar Unguja", 59, 23, 12, 1, 5, 1], ["Zanzibar Pemba", 62, 9, 20, "<1", 4, 5], ["Zanzibar Total", 60, 18, 15, "<1", 5, 3]] 
 <response> The most common source of improved drinking water is a public tap/standpipe (17%). The other two common sources are water piped into a dwelling/yard plot and water piped to a neighbour.  