| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Not at all free | 46 |
3.8%
|
| 2 | Not very free | 215 |
17.9%
|
| 3 | Somewhat free | 410 |
34.2%
|
| 4 | Completely free | 527 |
43.9%
|
| 9 | Don't know | 2 |
0.2%
|
| 998 | Refused | 0 |
0%
|