Table 4 Tertile ranges for relative change (2006 vs. 2000) in population access to improved water and sanitation
From: Water and sanitation infrastructure for health: The impact of foreign aid
| Â | Tertile level | Relative Change in population access (%) |
|---|---|---|
Water | Lowest | -7.0 to 2.3 |
| Â | Middle | 2.4 to 8.5 |
| Â | Highest | 11.1 to 71.0 |
Sanitation | Lowest | -20.8 to 3.2 |
| Â | Middle | 3.7 to 14.8 |
| Â | Highest | 17.9 to 118.2 |