| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Not at all free | 20 |
1.7%
|
| 2 | Not very free | 72 |
6%
|
| 3 | Somewhat free | 302 |
25.2%
|
| 4 | Completely free | 804 |
67%
|
| 9 | Don't know | 2 |
0.2%
|
| 998 | Refused | 0 |
0%
|