| Value | Category | Cases | |
|---|---|---|---|
| 0 | 252 |
61.3%
|
|
| 1 | 129 |
31.4%
|
|
| 2 | 23 |
5.6%
|
|
| 3 | 5 |
1.2%
|
|
| 4 | 2 |
0.5%
|
|
| Sysmiss | 41 |