| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 0 |
0%
|
| -888 | -888 | 27 |
24.1%
|
| 0 | No | 18 |
16.1%
|
| 1 | Yes | 59 |
52.7%
|
| 2 | Free (no cost) | 8 |
7.1%
|
| Sysmiss | 4838 |