| Value | Category | Cases | |
|---|---|---|---|
| 0 | 22 |
13.4%
|
|
| 1 | 33 |
20.1%
|
|
| 2 | 73 |
44.5%
|
|
| 3 | 21 |
12.8%
|
|
| 4 | 8 |
4.9%
|
|
| 5 | 3 |
1.8%
|
|
| 7 | 4 |
2.4%
|
|
| Sysmiss | 316 |