| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Not at all free | 21 |
1.8%
|
| 2 | Not very free | 25 |
2.1%
|
| 3 | Somewhat free | 95 |
7.9%
|
| 4 | Completely free | 1028 |
85.9%
|
| 9 | Don't know | 28 |
2.3%
|
| 998 | Refused | 0 |
0%
|