| Value | Category | Cases | |
|---|---|---|---|
| 1 | Only one | 541 |
3.4%
|
| 2 | 2-4 | 1436 |
8.9%
|
| 3 | 5-9 | 692 |
4.3%
|
| 4 | 10-19 | 341 |
2.1%
|
| 5 | 20+ | 1318 |
8.2%
|
| Sysmiss | 11781 |