| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 7 |
0.3%
|
| 2 | no | 2464 |
98.9%
|
| 3 | already listed | 21 |
0.8%
|
| Sysmiss | [.a] invalid code | 0 | |
| Sysmiss | 6 |