| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 1 | Not at all free | 83 |
6.9%
|
| 2 | Not very free | 171 |
14.3%
|
| 3 | Somewhat free | 265 |
22.1%
|
| 4 | Completely free | 662 |
55.2%
|
| 9 | Don't know | 18 |
1.5%
|