| Value | Category | Cases | |
|---|---|---|---|
| 1 | most of them | 687 |
17.9%
|
| 2 | about half of them | 676 |
17.7%
|
| 3 | some of them | 1647 |
43%
|
| 4 | none of them | 820 |
21.4%
|
| Sysmiss | 31 |