| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 142 |
1.9%
|
| 2 | no | 7265 |
97.5%
|
| 3 | already listed | 43 |
0.6%
|
| Sysmiss | [.a] invalid code | 0 | |
| Sysmiss | 1 |