| Value | Category | Cases | |
|---|---|---|---|
| 0 | 22 |
2.6%
|
|
| 1 | 22 |
2.6%
|
|
| 2 | 64 |
7.7%
|
|
| 3 | 138 |
16.6%
|
|
| 4 | 267 |
32.1%
|
|
| 5 | 258 |
31%
|
|
| 6 | 60 |
7.2%
|
|
| Sysmiss | 407 |