| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 498 |
97.5%
|
| 1 | Yes | 13 |
2.5%
|
| 7 | N/A | 0 |
0%
|
| 8 | DK | 0 |
0%
|
| Sysmiss | 1 |