| Value | Category | Cases | |
|---|---|---|---|
| 1 | most of them | 68 |
3.3%
|
| 2 | about half of them | 63 |
3%
|
| 3 | some of them | 276 |
13.4%
|
| 4 | none of them | 1659 |
80.3%
|
| Sysmiss | 17 |