| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 9 |
2.6%
|
| -7 | Not VAT eligible | 1 |
0.3%
|
| -6 | VAT refund not available | 3 |
0.9%
|
| 1 | Yes | 147 |
41.9%
|
| 2 | No | 191 |
54.4%
|