| Value | Category | Cases | |
|---|---|---|---|
| 0 | 46 |
26.9%
|
|
| 1 | 52 |
30.4%
|
|
| 2 | 37 |
21.6%
|
|
| 3 | 16 |
9.4%
|
|
| 4 | 10 |
5.8%
|
|
| 7 | 10 |
5.8%
|
|
| Sysmiss | 990 |