| Value | Category | Cases | |
|---|---|---|---|
| 0 | 4 |
0%
|
|
| 1 | Yes | 4434 |
28.7%
|
| 2 | No | 10225 |
66.2%
|
| 8 | 1 |
0%
|
|
| 9 | Missing | 776 |
5%
|
| Sysmiss | 9087 |