| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0 | 0 |
0%
|
| 1 | 1 | 0 |
0%
|
| 7 | 7 | 0 |
0%
|
| 8 | 8 | 0 |
0%
|
| 9 | 9 | 0 |
0%
|
| 16 | 16 | 0 |
0%
|
| 18 | 18 | 1 |
100%
|
| 28 | 28 | 0 |
0%
|
| Sysmiss | 9998 |