| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 143 |
6.2%
|
| 2 | 1 | 192 |
8.3%
|
| 3 | 2 | 391 |
16.8%
|
| 4 | 3 or more | 1597 |
68.7%
|
| Sysmiss | 32 |