| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 | 1022 |
54.9%
|
| 1 | 2 | 276 |
14.8%
|
| 2 | 3 | 556 |
29.9%
|
| 3 | 4 | 2 |
0.1%
|
| 4 | 8 | 4 |
0.2%
|
| Sysmiss | 50 |