| Value | Category | Cases | |
|---|---|---|---|
| 0 | 3 |
20%
|
|
| 1 | 9 |
60%
|
|
| 2 | 1 |
6.7%
|
|
| 3 | 1 |
6.7%
|
|
| 5 | 1 |
6.7%
|
|
| 999 | Refused | 0 |
0%
|
| Sysmiss | 4502 |