| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 638 |
8.6%
|
| 2 | no | 6657 |
89.4%
|
| 3 | already listed | 155 |
2.1%
|
| Sysmiss | [.a] invalid code | 0 | |
| Sysmiss | 1 |