| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.4%
|
| -7 | Not VAT eligible | 14 |
5.4%
|
| -6 | VAT refund not available | 2 |
0.8%
|
| 1 | Yes | 144 |
55.6%
|
| 2 | No | 98 |
37.8%
|