| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 1 | Not at all free | 43 |
3.6%
|
| 2 | Not very free | 85 |
7.1%
|
| 3 | Somewhat free | 174 |
14.5%
|
| 4 | Completely free | 855 |
71.3%
|
| 9 | Don't know | 42 |
3.5%
|