| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Not at all free | 42 |
3.5%
|
| 2 | Not very free | 96 |
8.1%
|
| 3 | Somewhat free | 305 |
25.6%
|
| 4 | Completely free | 738 |
62%
|
| 9 | Don't know | 9 |
0.8%
|
| 998 | Refused | 0 |
0%
|