| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 43 |
4.2%
|
| -7 | Not VAT eligible | 30 |
2.9%
|
| -6 | VAT refund not available | 251 |
24.4%
|
| 1 | Yes | 281 |
27.3%
|
| 2 | No | 423 |
41.1%
|