| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 4 |
0.5%
|
| 2 | No | 68 |
7.7%
|
| 9 | Missing | 812 |
91.9%
|
| 98 | Not applicable | 0 |
0%
|
| Sysmiss | 17185 |