| Value | Category | Cases | |
|---|---|---|---|
| 0 | 564 |
96.7%
|
|
| 1 | 9 |
1.5%
|
|
| 2 | 4 |
0.7%
|
|
| 3 | 4 |
0.7%
|
|
| 4 | 2 |
0.3%
|
|
| Sysmiss | 238 |