| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Totally free | 877 |
73.1%
|
| 2 | Partially free | 69 |
5.8%
|
| 3 | Not at all free | 232 |
19.3%
|
| 9 | Don't know | 22 |
1.8%
|
| 998 | Refused | 0 |
0%
|