| Value | Category | Cases | |
|---|---|---|---|
| 0 | 61 |
91%
|
|
| 1 | 2 |
3%
|
|
| 2 | 1 |
1.5%
|
|
| 7 | 1 |
1.5%
|
|
| 8 | 1 |
1.5%
|
|
| 11 | 1 |
1.5%
|
|
| Sysmiss | 31 |