| Value | Category | Cases | |
|---|---|---|---|
| -99 | DK | 4 |
0.1%
|
| -88 | Missing | 0 |
0%
|
| -77 | NA | 6 |
0.1%
|
| 0 | 2 |
0%
|
|
| 1 | Yes | 705 |
13.1%
|
| 2 | No | 4681 |
86.7%
|