| Value | Category | Cases | |
|---|---|---|---|
| 1 | Only one | 33 |
0.1%
|
| 2 | 2--4 | 70 |
0.2%
|
| 3 | 5--9 | 34 |
0.1%
|
| 4 | 10--19 | 13 |
0%
|
| 5 | 20++ | 11 |
0%
|
| Sysmiss | 28318 |