| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 6 |
0.5%
|
| 1 | Not at all free | 21 |
1.8%
|
| 2 | Not very free | 68 |
5.7%
|
| 3 | Somewhat free | 108 |
9%
|
| 4 | Completely free | 947 |
79.2%
|
| 9 | Don't know | 46 |
3.8%
|
| 98 | Refused | 0 |
0%
|