| Value | Category | Cases | |
|---|---|---|---|
| -99 | DK | 0 |
0%
|
| -88 | Missing | 0 |
0%
|
| -77 | NA | 96 |
10.9%
|
| 1 | Yes | 415 |
47.1%
|
| 2 | No | 371 |
42.1%
|
| Sysmiss | 2 |