| Value | Category | Cases | |
|---|---|---|---|
| 1 | 8 |
2.5%
|
|
| 2 | 280 |
86.2%
|
|
| 3 | 14 |
4.3%
|
|
| 4 | 23 |
7.1%
|
|
| Sysmiss | 1 |