| Value | Category | Cases | |
|---|---|---|---|
| -99 | DK | 1 |
0%
|
| -88 | Missing | 0 |
0%
|
| -77 | NA | 15 |
0.5%
|
| 1 | YES | 475 |
15.2%
|
| 2 | NO | 2627 |
84.3%
|
| Sysmiss | 902 |