| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Not at all free | 15 |
1.3%
|
| 2 | Not very free | 83 |
6.9%
|
| 3 | Somewhat free | 411 |
34.3%
|
| 4 | Completely free | 679 |
56.6%
|
| 9 | Don't know | 12 |
1%
|
| 98 | Refused | 0 |
0%
|