| Value | Category | Cases | |
|---|---|---|---|
| 0 | 172 |
63.2%
|
|
| 1 | 91 |
33.5%
|
|
| 2 | 7 |
2.6%
|
|
| 4 | 2 |
0.7%
|
|
| Sysmiss | 593 |