| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1396 |
8.7%
|
|
| 2 | 3472 |
21.8%
|
|
| 3 | 6906 |
43.3%
|
|
| 4 | 4185 |
26.2%
|
|
| Sysmiss | 481 |