| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 97 |
9.6%
|
| 2 | 1 | 119 |
11.8%
|
| 3 | 2 | 152 |
15.1%
|
| 4 | 3 or more | 640 |
63.5%
|
| Sysmiss | 25 |