| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 0 |
0%
|
| -888 | -888 | 120 |
16%
|
| 0 | No | 104 |
13.8%
|
| 1 | Yes | 414 |
55.1%
|
| 2 | Free (no cost) | 114 |
15.2%
|
| Sysmiss | 4198 |