| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Not at all free | 31 |
2.6%
|
| 2 | Not very free | 129 |
10.8%
|
| 3 | Somewhat free | 342 |
28.5%
|
| 4 | Completely free | 688 |
57.3%
|
| 8 | Refused | 3 |
0.3%
|
| 9 | Don’t know | 7 |
0.6%
|