| Value | Category | Cases | |
|---|---|---|---|
| 0 | 478 |
87.4%
|
|
| 1 | 47 |
8.6%
|
|
| 2 | 9 |
1.6%
|
|
| 3 | 8 |
1.5%
|
|
| 4 | 3 |
0.5%
|
|
| 5 | 2 |
0.4%
|
|
| Sysmiss | 14 |