| Value | Category | Cases | |
|---|---|---|---|
| 0 | 138 |
86.8%
|
|
| 1 | 9 |
5.7%
|
|
| 2 | 11 |
6.9%
|
|
| 4 | 1 |
0.6%
|
|
| Sysmiss | 1 |