| Value | Category | Cases | |
|---|---|---|---|
| -9 | Missing Data | 3 |
7.1%
|
| 0 | 1 |
2.4%
|
|
| 1 | Yes | 33 |
78.6%
|
| 2 | No | 5 |
11.9%
|
| Sysmiss | 3958 |