| Value | Category | Cases | |
|---|---|---|---|
| 1 | Most of them | 134 |
2.2%
|
| 2 | About half of them | 164 |
2.7%
|
| 3 | Some of them | 1760 |
28.9%
|
| 4 | None of them | 4035 |
66.2%
|
| Sysmiss | 52 |