| Value | Category |
|---|---|
| 0 | Not willing to pay 5 pounds |
| 1 | Willing to pay 5 pounds |
| 2 | Willing to pay 10 pounds |
| 3 | Willing to pay 25 pound |
| 4 | Willing to pay 50 pounds |
| 5 | Willing to pay 100 pounds |
| 6 | Willing to pay 150 pounds |
| 7 | Willing to pay 200 pounds |
| 8 | Willing to pay 200 pounds + |