| Value | Category | Cases | |
|---|---|---|---|
| 11 | 17 |
0.9%
|
|
| 12 | 136 |
6.8%
|
|
| 21 | 63 |
3.2%
|
|
| 22 | 1780 |
89.2%
|
|
| Sysmiss | 3 |