| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Totally free | 260 |
21.7%
|
| 2 | Partially free | 147 |
12.3%
|
| 3 | Not at all free | 686 |
57.2%
|
| 9 | Don't know | 107 |
8.9%
|
| 998 | Refused | 0 |
0%
|