| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 154 |
6.5%
|
| 2 | 1 | 159 |
6.7%
|
| 3 | 2 | 308 |
13%
|
| 4 | 3 or more | 1746 |
73.8%
|
| Sysmiss | 55 |