| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 82 |
2.6%
|
| 2 | No | 44 |
1.4%
|
| 3 | Never | 2065 |
66.7%
|
| 4 | None avaialable | 904 |
29.2%
|
| Sysmiss | 129 |