| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Not at all free | 50 |
4.2%
|
| 2 | Not very free | 103 |
8.6%
|
| 3 | Somewhat free | 151 |
12.6%
|
| 4 | Completely free | 875 |
72.9%
|
| 9 | Don't know | 21 |
1.8%
|
| 998 | Refused | 0 |
0%
|