| Value | Category | Cases | |
|---|---|---|---|
| 0 | 137 |
7.1%
|
|
| 1 | 419 |
21.6%
|
|
| 2 | 558 |
28.8%
|
|
| 3 | 365 |
18.9%
|
|
| 4 | 182 |
9.4%
|
|
| 5 | 114 |
5.9%
|
|
| 6 | 72 |
3.7%
|
|
| 7 | 89 |
4.6%
|
|
| Sysmiss | 569 |