| Value | Category | Cases | |
|---|---|---|---|
| 1 | 44 |
1.3%
|
|
| 2 | 129 |
3.9%
|
|
| 3 | 250 |
7.5%
|
|
| 4 | 2891 |
87.2%
|
|
| Sysmiss | 1993 |