| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 504 |
7.4%
|
| 2 | no, didn't need to | 4716 |
69%
|
| 3 | couldn't | 1615 |
23.6%
|
| Sysmiss | [.a] invalid value | 0 | |
| Sysmiss | 5 |