| Value | Category | Cases | |
|---|---|---|---|
| 15 | 1 |
16.7%
|
|
| 20 | 2 |
33.3%
|
|
| 23 | 1 |
16.7%
|
|
| 25 | 1 |
16.7%
|
|
| 98 | 98. Refused | 0 |
0%
|
| 99 | 99. Don't know | 1 |
16.7%
|
| Sysmiss | 93 |