| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 132 |
14.5%
|
| 2 | 1 | 228 |
25%
|
| 3 | 2 | 167 |
18.3%
|
| 4 | 3 or more | 384 |
42.2%
|
| Sysmiss | 32 |