| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 29 |
0.4%
|
| 2 | no, didn't need to | 4804 |
70.3%
|
| 3 | couldn't | 2002 |
29.3%
|
| Sysmiss | [.a] invalid value | 0 | |
| Sysmiss | 5 |