| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | None | 137 |
5.7%
|
| 1 | Some of them | 1222 |
50.9%
|
| 2 | Most of them | 700 |
29.2%
|
| 3 | All of them | 242 |
10.1%
|
| 8 | Refused | 2 |
0.1%
|
| 9 | Don't know | 97 |
4%
|