| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 |
1.2%
|
|
| 1 | 55 |
66.3%
|
|
| 2 | 16 |
19.3%
|
|
| 3 | 4 |
4.8%
|
|
| 4 | 4 |
4.8%
|
|
| 15 | 2 |
2.4%
|
|
| 20 | 1 |
1.2%
|
|
| Sysmiss | 42 |