| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 12 |
2.8%
|
| 2 | 1-2 | 32 |
7.4%
|
| 3 | 3-10 | 89 |
20.5%
|
| 4 | 11-20 | 162 |
37.3%
|
| 5 | >20 | 139 |
32%
|
| 8 | Unknown | 0 |
0%
|
| 9 | Missing | 11 | |
| Sysmiss | 12 |