| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 23 |
1.9%
|
| -7 | Not VAT eligible | 16 |
1.3%
|
| -6 | VAT refund not available | 51 |
4.2%
|
| 1 | Yes | 318 |
26.2%
|
| 2 | No | 808 |
66.4%
|