| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Not at all free | 16 |
1.3%
|
| 2 | Not very free | 45 |
3.8%
|
| 3 | Somewhat free | 120 |
10%
|
| 4 | Completely free | 1002 |
83.5%
|
| 9 | Don't know | 17 |
1.4%
|
| 998 | Refused | 0 |
0%
|