| Value | Category | Cases | |
|---|---|---|---|
| 1 | most of them | 588 |
11.7%
|
| 2 | about half of them | 289 |
5.8%
|
| 3 | some of them | 1762 |
35.1%
|
| 4 | none of them | 2374 |
47.4%
|
| Sysmiss | 128 |