| Value | Category |
|---|---|
| 1 | Less than 25 litres (one container) |
| 2 | 25-100 l (1-4 containers) |
| 3 | 101-200 l (4 - 8 containers/ ½ to 1 drum) |
| 4 | 201-400 l (8 - 16 containers / 1 - 2 drums) |
| 5 | 401-600l (16 - 24 containers / 2 - 3 drums) |
| 6 | More than 600 litres or 3 drums |
| 8 | Do not know |
| 9 | NA - HH has tap in house or on site |