| Value | Category | Cases | |
|---|---|---|---|
| 0 | 281 |
28.2%
|
|
| 1 | 569 |
57.1%
|
|
| 2 | 144 |
14.5%
|
|
| 3 | 2 |
0.2%
|
|
| Sysmiss | 3 |