| Value | Category | Cases | |
|---|---|---|---|
| 1 | Most of them | 1 |
4.8%
|
| 2 | Some of them | 2 |
9.5%
|
| 3 | Very few | 1 |
4.8%
|
| 4 | No one | 17 |
81%
|
| Sysmiss | 78 |