| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 6 |
1.7%
|
| -7 | Not VAT eligible | 28 |
7.9%
|
| -6 | VAT refund not available | 3 |
0.8%
|
| 1 | Yes | 51 |
14.4%
|
| 2 | No | 266 |
75.1%
|