| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 9 |
1.9%
|
| -7 | Not VAT eligible | 6 |
1.3%
|
| -6 | VAT refund not available | 14 |
2.9%
|
| 1 | Yes | 111 |
23.1%
|
| 2 | No | 340 |
70.8%
|