| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 3 |
0.3%
|
| 1 | Not at all free | 51 |
4.3%
|
| 2 | Not very free | 77 |
6.5%
|
| 3 | Somewhat free | 309 |
26.1%
|
| 4 | Completely free | 695 |
58.8%
|
| 9 | Don't know | 47 |
4%
|
| 98 | Refused | 0 |
0%
|