| Value | Category | Cases | |
|---|---|---|---|
| 1 | 13 |
10.9%
|
|
| 2 | 69 |
58%
|
|
| 3 | 22 |
18.5%
|
|
| 4 | 15 |
12.6%
|
|
| Sysmiss | 3 |