| Value | Category | Cases | |
|---|---|---|---|
| 0 | 306 |
68.6%
|
|
| 1 | 103 |
23.1%
|
|
| 2 | 25 |
5.6%
|
|
| 3 | 10 |
2.2%
|
|
| 4 | 2 |
0.4%
|
|
| Sysmiss | 446 |