| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 |
20%
|
|
| 1 | 1 |
20%
|
|
| 2 | 2 |
40%
|
|
| 15 | 1 |
20%
|
|
| 99 | Refused | 0 |
0%
|
| Sysmiss | 7855 |