| Value | Category | Cases | |
|---|---|---|---|
| 1 | 871 |
6.9%
|
|
| 2 | 3235 |
25.5%
|
|
| 3 | 6548 |
51.6%
|
|
| 4 | 2040 |
16.1%
|
|
| Sysmiss | 3876 |