| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2760 |
75.8%
|
|
| 1 | 247 |
6.8%
|
|
| 2 | 560 |
15.4%
|
|
| 3 | 70 |
1.9%
|
|
| 4 | 6 |
0.2%
|
|
| Sysmiss | 4 |