| Value | Category | Cases | |
|---|---|---|---|
| 0 | 28 |
0.3%
|
|
| 1 | 2374 |
22.9%
|
|
| 2 | 6905 |
66.5%
|
|
| 3 | 260 |
2.5%
|
|
| 4 | 812 |
7.8%
|
|
| Sysmiss | 4 |