| Value | Category | Cases | |
|---|---|---|---|
| 3 | 1 |
25%
|
|
| 4 | 1 |
25%
|
|
| 6 | 1 |
25%
|
|
| 9 | 1 |
25%
|
|
| 99 | Missing | 0 |
0%
|
| Sysmiss | 1721 |