| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES, PRESENT | 8411 |
83.4%
|
| 2 | NO, NOT PRESENT | 493 |
4.9%
|
| 9 | NO RESPONSE | 15 |
0.1%
|
| Sysmiss | 1161 |
11.5%
|