| Value | Category | Cases | |
|---|---|---|---|
| -99 | DK | 0 |
0%
|
| -88 | Missing | 0 |
0%
|
| -77 | NA | 97 |
11%
|
| 1 | Yes | 69 |
7.8%
|
| 2 | No | 716 |
81.2%
|
| Sysmiss | 2 |