| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. none | 47 |
1.5%
|
| 1 | 1. only a few | 776 |
25%
|
| 2 | 2. about half | 1191 |
38.3%
|
| 3 | 3. most of them | 990 |
31.8%
|
| 4 | 4. all of them | 106 |
3.4%
|
| Sysmiss | 1428 |