| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 9 |
2.4%
|
| -7 | Not VAT eligible | 89 |
23.7%
|
| -6 | VAT refund not available | 56 |
14.9%
|
| 1 | Yes | 34 |
9.1%
|
| 2 | No | 187 |
49.9%
|