| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 7 |
6.2%
|
| -8 | Refusal (spontaneous) | 4 |
3.5%
|
| 0 | No payments or gifts are paid | 99 |
87.6%
|
| 1 | 1 |
0.9%
|
|
| 10 | 1 |
0.9%
|
|
| 15 | 1 |
0.9%
|
|
| Sysmiss | 1 |