| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1081 |
8.5%
|
|
| 2 | 3601 |
28.4%
|
|
| 3 | 6015 |
47.4%
|
|
| 4 | 1997 |
15.7%
|
|
| Sysmiss | 3876 |