| Value | Category | Cases | |
|---|---|---|---|
| 0 | 24 |
77.4%
|
|
| 4 | 1 |
3.2%
|
|
| 9 | 1 |
3.2%
|
|
| 99 | Missing | 5 |
16.1%
|
| Sysmiss | 2631 |