| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 1 |
0.3%
|
| -888 | -888 | 116 |
30.5%
|
| 0 | No | 67 |
17.6%
|
| 1 | Yes | 165 |
43.4%
|
| 2 | Free (no cost) | 31 |
8.2%
|
| Sysmiss | 4570 |