| Value | Category | Cases | |
|---|---|---|---|
| 1 | Only one | 28 |
0.1%
|
| 2 | 2--4 | 75 |
0.3%
|
| 3 | 5--9 | 26 |
0.1%
|
| 4 | 10--19 | 6 |
0%
|
| 5 | 20+ | 9 |
0%
|
| Sysmiss | 23693 |