| Value | Category | Cases | |
|---|---|---|---|
| -99 | DK | 0 |
0%
|
| -88 | Missing | 0 |
0%
|
| -77 | NA | 2 |
0%
|
| 0 | 6 |
0%
|
|
| 1 | Yes | 1564 |
11.2%
|
| 2 | No | 12369 |
88.7%
|
| Sysmiss | 5 |