| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 320 |
5.8%
|
| 2 | 1 | 461 |
8.4%
|
| 3 | 2 | 694 |
12.6%
|
| 4 | 3 or more | 4030 |
73.2%
|
| Sysmiss | 87 |