| Value | Category | Cases | |
|---|---|---|---|
| 17 | 1 |
33.3%
|
|
| 20 | 1 |
33.3%
|
|
| 22 | 1 |
33.3%
|
|
| 98 | 98. refused | 0 |
0%
|
| 99 | 99. don't know | 0 |
0%
|
| Sysmiss | 96 |