| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 |
20%
|
|
| 20 | 1 |
20%
|
|
| 30 | 1 |
20%
|
|
| 31 | 1 |
20%
|
|
| 99 | REFUSED | 1 |
20%
|
| Sysmiss | 20561 |