| Value | Category | Cases | |
|---|---|---|---|
| 0 | 3 |
20%
|
|
| 1 | 7 |
46.7%
|
|
| 2 | 2 |
13.3%
|
|
| 3 | 2 |
13.3%
|
|
| 4 | 1 |
6.7%
|
|
| 99 | Not applicable | 0 |
0%
|
| Sysmiss | 235 |