| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 1 |
0%
|
| -8 | Refused | 6 |
0.1%
|
| -5 | Not Applicable | 0 |
0%
|
| -3 | Missing | 25 |
0.3%
|
| 1 | Yes | 1124 |
15.4%
|
| 2 | No | 6140 |
84.2%
|