| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 14 |
0.6%
|
| 2 | no | 2454 |
98.5%
|
| 3 | already listed | 24 |
1%
|
| Sysmiss | [.a] invalid code | 0 | |
| Sysmiss | 6 |