| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1640 |
22.1%
|
|
| 2 | 3515 |
47.3%
|
|
| 3 | 1519 |
20.4%
|
|
| 4 | 635 |
8.5%
|
|
| 9 | 121 |
1.6%
|
|
| Sysmiss | 11931 |