| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Totally free | 312 |
26%
|
| 2 | Partially free | 237 |
19.8%
|
| 3 | Not at all free | 587 |
48.9%
|
| 9 | Don't know | 64 |
5.3%
|
| 998 | Refused | 0 |
0%
|