| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 | 9 |
2.2%
|
| 2 | 2 | 32 |
8%
|
| 3 | 3 | 23 |
5.7%
|
| 4 | 4 | 338 |
84.1%
|
| Sysmiss | 343 |