| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 | 4 |
11.8%
|
| 2 | 2 | 3 |
8.8%
|
| 4 | Other | 26 |
76.5%
|
| 9 | 9 | 1 |
2.9%
|
| Sysmiss | 2985 |