| Value | Category | Cases | |
|---|---|---|---|
| 1 | 9 |
3.9%
|
|
| 2 | 35 |
15.3%
|
|
| 3 | 156 |
68.1%
|
|
| 4 | 29 |
12.7%
|
|
| Sysmiss | 2 |