| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 0 |
0%
|
| 1 | YES | 32 |
0.8%
|
| 2 | NO | 3624 |
95.4%
|
| 7 | NOT APPLICABLE | 144 |
3.8%
|
| Sysmiss | 4211 |