| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 1 |
0.4%
|
| -888 | -888 | 29 |
11.5%
|
| 0 | No | 33 |
13.1%
|
| 1 | Yes | 153 |
60.7%
|
| 2 | Free (no cost) | 36 |
14.3%
|
| Sysmiss | 4698 |