| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1578 |
77.7%
|
|
| 1 | 399 |
19.6%
|
|
| 2 | 49 |
2.4%
|
|
| 3 | 6 |
0.3%
|
|
| Sysmiss | 2829 |