| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 6 |
3.7%
|
| 2 | 1 | 15 |
9.3%
|
| 3 | 2 | 25 |
15.4%
|
| 4 | 3 or more | 116 |
71.6%
|
| Sysmiss | 2 |