| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 177 |
5.6%
|
| 2 | 1 | 351 |
11.2%
|
| 3 | 2 | 640 |
20.4%
|
| 4 | 3 or more | 1967 |
62.7%
|
| Sysmiss | 27 |