| Value | Category | Cases | |
|---|---|---|---|
| 0 | 162 |
11.6%
|
|
| 1 | 86 |
6.2%
|
|
| 2 | 93 |
6.7%
|
|
| 3 | 250 |
17.9%
|
|
| 4 | 805 |
57.7%
|
|
| Sysmiss | 174 |