| Value | Category | Cases | |
|---|---|---|---|
| 0 | 3 |
5.3%
|
|
| 2 | 1 |
1.8%
|
|
| 4 | 31 |
54.4%
|
|
| 5 | 19 |
33.3%
|
|
| 6 | 2 |
3.5%
|
|
| 20 | 1 |
1.8%
|
|
| Sysmiss | 120728 |