| Value | Category | Cases | |
|---|---|---|---|
| 1 | 28 |
8.5%
|
|
| 2 | 35 |
10.7%
|
|
| 3 | 49 |
14.9%
|
|
| 4 | 33 |
10.1%
|
|
| 5 | 38 |
11.6%
|
|
| 6 | 48 |
14.6%
|
|
| 999 | 97 |
29.6%
|
|
| Sysmiss | 5 |