| Value | Category | Cases | |
|---|---|---|---|
| 0 | 13 |
6.6%
|
|
| 1 | 128 |
65.3%
|
|
| 2 | 22 |
11.2%
|
|
| 3 | 4 |
2%
|
|
| 6 | 7 |
3.6%
|
|
| 7 | 22 |
11.2%
|
|
| Sysmiss | 13 |