| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Totally free | 347 |
28.9%
|
| 2 | Partially free | 142 |
11.8%
|
| 3 | Not at all free | 342 |
28.5%
|
| 9 | Don't know | 369 |
30.8%
|
| 998 | Refused | 0 |
0%
|