| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 474 |
17.7%
|
| 2 | 1 | 346 |
12.9%
|
| 3 | 2 | 405 |
15.1%
|
| 4 | 3 or more | 1459 |
54.4%
|
| Sysmiss | 31 |