| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 224 |
8.7%
|
| 2 | 1 | 347 |
13.5%
|
| 3 | 2 | 346 |
13.4%
|
| 4 | 3 or more | 1661 |
64.4%
|
| Sysmiss | 99 |