| Value | Category | Cases | |
|---|---|---|---|
| 0 | 6 |
5%
|
|
| 2 | 50 |
41.3%
|
|
| 3 | 43 |
35.5%
|
|
| 4 | 21 |
17.4%
|
|
| 20 | 1 |
0.8%
|
|
| Sysmiss | 10 |