| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 99 |
2.5%
|
| 2 | NO | 3892 |
97.2%
|
| 77 | DONT KNOW | 6 |
0.1%
|
| 99 | REFUSE TO ANSWER | 6 |
0.1%
|
| Sysmiss | 2217 |