| Value | Category | Cases | |
|---|---|---|---|
| 0 | 135 |
39.9%
|
|
| 1 | 176 |
52.1%
|
|
| 2 | 22 |
6.5%
|
|
| 3 | 3 |
0.9%
|
|
| 4 | 2 |
0.6%
|
|
| Sysmiss | 698 |