| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Not at all free | 27 |
2.2%
|
| 2 | Not very free | 31 |
2.6%
|
| 3 | Somewhat free | 145 |
12%
|
| 4 | Completely free | 952 |
79.1%
|
| 9 | Don't know | 49 |
4.1%
|
| 998 | Refused | 0 |
0%
|