| Value | Category | Cases | |
|---|---|---|---|
| 0 | 23 |
0.3%
|
|
| 1 | 527 |
7.2%
|
|
| 2 | 1378 |
18.9%
|
|
| 3 | 4825 |
66.4%
|
|
| 4 | 519 |
7.1%
|
|
| Sysmiss | 1538 |