| Value | Category | Cases | |
|---|---|---|---|
| 0 | 3 |
2%
|
|
| 1 | 4 |
2.7%
|
|
| 2 | 7 |
4.8%
|
|
| 3 | 12 |
8.2%
|
|
| 4 | 2 |
1.4%
|
|
| 5 | 48 |
32.7%
|
|
| 10 | 48 |
32.7%
|
|
| 15 | 22 |
15%
|
|
| 20 | 1 |
0.7%
|
|
| Sysmiss | 13 |