| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Not at all free | 17 |
1.4%
|
| 2 | Not very free | 20 |
1.7%
|
| 3 | Somewhat free | 124 |
10.3%
|
| 4 | Completely free | 1028 |
85.7%
|
| 8 | Refused | 2 |
0.2%
|
| 9 | Don’t know | 9 |
0.8%
|