| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 180 |
5.5%
|
| 2 | 1 | 391 |
12%
|
| 3 | 2 | 574 |
17.7%
|
| 4 | 3 or more | 2100 |
64.7%
|
| Sysmiss | 17 |