| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Not at all free | 66 |
2.8%
|
| 2 | Not very free | 179 |
7.5%
|
| 3 | Somewhat free | 537 |
22.4%
|
| 4 | Completely free | 1606 |
66.9%
|
| 9 | Don't know | 12 |
0.5%
|
| 998 | 0 |
0%
|