| Value | Category | Cases | |
|---|---|---|---|
| 0 | 13 |
5.1%
|
|
| 1 | 203 |
79%
|
|
| 2 | 37 |
14.4%
|
|
| 3 | 4 |
1.6%
|
|
| Sysmiss | 304 |