| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Not at all free | 101 |
8.4%
|
| 2 | Not very free | 244 |
20.3%
|
| 3 | Somewhat free | 395 |
32.9%
|
| 4 | Completely free | 454 |
37.8%
|
| 9 | Don't know | 6 |
0.5%
|
| 998 | Refused | 0 |
0%
|