| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 50 |
1.4%
|
| 2 | No. | 3355 |
94.6%
|
| 7 | 134 |
3.8%
|
|
| 9 | Missing | 8 |
0.2%
|
| Sysmiss | 4710 |