| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 422 |
11.9%
|
| 2 | No. | 2974 |
83.8%
|
| 7 | 123 |
3.5%
|
|
| 9 | Missing | 28 |
0.8%
|
| Sysmiss | 4710 |