| Value | Category | Cases | |
|---|---|---|---|
| 0 | 7 |
9.1%
|
|
| 1 | Yes | 32 |
41.6%
|
| 2 | No | 15 |
19.5%
|
| 3 | 22 |
28.6%
|
|
| 4 | 1 |
1.3%
|
|
| Sysmiss | 744 |