| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 1816 |
8.4%
|
| 1 | Yes | 19743 |
91.6%
|
| 7 | Not applicable | 0 |
0%
|
| 8 | Unknown | 0 |
0%
|
| 9 | Missing | 0 | |
| Sysmiss | 4480 |