| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 471 |
76.8%
|
| 2 | No | 119 |
19.4%
|
| 8 | 21 |
3.4%
|
|
| 9 | Missing | 2 |
0.3%
|
| Sysmiss | 570 |