| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0 | 41 |
0.5%
|
| 1 | 1 | 2420 |
32.3%
|
| 2 | 2 | 4172 |
55.6%
|
| 3 | 3 or more | 865 |
11.5%
|
| Sysmiss | 2 |