| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 = Yes | 0 |
0%
|
| 2 | 2 = No | 1 |
0.1%
|
| 5 | 5 = Missing | 0 |
0%
|
| 7 | 7 = Refusal | 147 |
18.2%
|
| 9 | 9 = Not applicable | 661 |
81.7%
|