| Value | Category | Cases | |
|---|---|---|---|
| -2 | Skipped | 4067 |
74.2%
|
| -1 | True missing | 17 |
0.3%
|
| 0 | No | 947 |
17.3%
|
| 1 | Yes | 449 |
8.2%
|
| 99 | Refused to answer | 1 |
0%
|