| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 1 | Not at all free | 36 |
3%
|
| 2 | Not very free | 72 |
6%
|
| 3 | Somewhat free | 205 |
17.1%
|
| 4 | Completely free | 873 |
72.8%
|
| 9 | Don't know | 13 |
1.1%
|
| 998 | Refused | 0 |
0%
|