| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | None | 92 |
7.7%
|
| 1 | Some of them | 503 |
41.9%
|
| 2 | Most of them | 280 |
23.3%
|
| 3 | All of them | 169 |
14.1%
|
| 8 | Refused | 2 |
0.2%
|
| 9 | Don't know | 154 |
12.8%
|