| Value | Category | Cases | |
|---|---|---|---|
| -99 | DK | 0 |
0%
|
| -88 | Missing | 0 |
0%
|
| -77 | NA | 2 |
0%
|
| 0 | 2 |
0%
|
|
| 1 | Yes | 826 |
15.3%
|
| 2 | No | 4568 |
84.6%
|