| Value | Category | Cases | |
|---|---|---|---|
| 0 | 52 |
5.1%
|
|
| 1 | 103 |
10.1%
|
|
| 2 | 179 |
17.5%
|
|
| 3 | 340 |
33.2%
|
|
| 4 | 349 |
34.1%
|
|
| Sysmiss | 1122 |