| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 9 |
2.5%
|
| -7 | Not VAT eligible | 1 |
0.3%
|
| -6 | VAT refund not available | 3 |
0.8%
|
| 1 | Yes | 148 |
41.1%
|
| 2 | No | 199 |
55.3%
|