| Value | Category | Cases | |
|---|---|---|---|
| -99 | 10 |
2.4%
|
|
| 0 | 107 |
26%
|
|
| 1 | 166 |
40.4%
|
|
| 2 | 101 |
24.6%
|
|
| 3 | 24 |
5.8%
|
|
| 4 | 3 |
0.7%
|
|
| Sysmiss | 1105 |