| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | None | 137 |
5.7%
|
| 1 | Some of them | 1222 |
50.9%
|
| 2 | Most of them | 622 |
25.9%
|
| 3 | All of them | 202 |
8.4%
|
| 8 | Refused | 4 |
0.2%
|
| 9 | Don't know | 213 |
8.9%
|