| Value | Category | Cases | |
|---|---|---|---|
| 0 | 3561 |
98.3%
|
|
| 1 | 20 |
0.6%
|
|
| 2 | 11 |
0.3%
|
|
| 3 | 31 |
0.9%
|
|
| Sysmiss | 1694 |