| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 160 |
8.9%
|
| 2 | 1 | 258 |
14.3%
|
| 3 | 2 | 303 |
16.9%
|
| 4 | 3 or more | 1077 |
59.9%
|
| Sysmiss | 10 |