| Value | Category | Cases | |
|---|---|---|---|
| 1 | 4 |
3.7%
|
|
| 2 | 1 | 72 |
67.3%
|
| 3 | 2 | 1 |
0.9%
|
| 4 | 3 | 2 |
1.9%
|
| Sysmiss | 28 |