| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Not at all free | 41 |
3.4%
|
| 2 | Not very free | 112 |
9.3%
|
| 3 | Somewhat free | 362 |
30.2%
|
| 4 | Completely free | 684 |
57%
|
| 9 | Don't know | 1 |
0.1%
|
| 998 | Refused | 0 |
0%
|