| Value | Category | Cases | |
|---|---|---|---|
| 1 | Only one | 1151 |
4.2%
|
| 2 | 2--4 | 3265 |
12%
|
| 3 | 5--9 | 1351 |
5%
|
| 4 | 10--19 | 550 |
2%
|
| 5 | 20++ | 3235 |
11.9%
|
| Sysmiss | 17700 |