| Value | Category | Cases | |
|---|---|---|---|
| 0 | 337 |
68.9%
|
|
| 1 | 110 |
22.5%
|
|
| 2 | 26 |
5.3%
|
|
| 3 | 11 |
2.2%
|
|
| 4 | 4 |
0.8%
|
|
| 5 | 1 |
0.2%
|
|
| Sysmiss | 578 |