| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 20 |
3.1%
|
| -7 | Not VAT eligible | 35 |
5.4%
|
| -6 | VAT refund not available | 57 |
8.8%
|
| 1 | Yes | 42 |
6.5%
|
| 2 | No | 491 |
76.1%
|