| Value | Category | Cases | |
|---|---|---|---|
| 0 | 10 |
66.7%
|
|
| 7 | 1 |
6.7%
|
|
| 15 | 1 |
6.7%
|
|
| 20 | 1 |
6.7%
|
|
| 110 | 1 |
6.7%
|
|
| 221 | 1 |
6.7%
|
|
| Sysmiss | don't know | 0 | |
| Sysmiss | refusal | 0 |