| Value | Category | Cases | |
|---|---|---|---|
| 18 | 1 |
20%
|
|
| 20 | 1 |
20%
|
|
| 25 | 2 |
40%
|
|
| 26 | 1 |
20%
|
|
| 98 | Don't know | 0 |
0%
|
| 99 | Missing | 0 |
0%
|
| Sysmiss | 2275 |