| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 20 |
13.8%
|
| -7 | Not VAT eligible | 1 |
0.7%
|
| -6 | VAT refund not available | 4 |
2.8%
|
| 1 | Yes | 37 |
25.5%
|
| 2 | No | 83 |
57.2%
|