| Value | Category | Cases | |
|---|---|---|---|
| -99 | DK | 0 |
0%
|
| -88 | Missing | 0 |
0%
|
| -77 | NA | 0 |
0%
|
| 1 | Yes | 41 |
8.6%
|
| 2 | No | 438 |
91.4%
|
| Sysmiss | 1298 |