Countries with least Access to Improved Water Supply
The UN define "improved water source" as having access to 20 litres per person for drinking the following sources: household connection, public standpipes, boreholes, protected dug wells, protected springs and rainwater collection within 1 kilometre of the users dwelling.
| Country | % |
| 1. Ethiopia | 22 |
| 2. Papua New Guinea | 39 |
| 3. Cambodia | 41 |
| 4. Chad | 42 |
| 5. Mozambique | 43 |
| 6. Equatorial Guinea | 43 |
| 7. Demo Rep of Congo | 46 |
| 8. Niger | 46 |
| 9. Fiji | 47 |
| 10. Nigeria | 48 |
Source: UN Human Development Report 2006
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