| Value | Category | Cases | |
|---|---|---|---|
| 0 | 3981 |
91.1%
|
|
| 1 | 163 |
3.7%
|
|
| 2 | 153 |
3.5%
|
|
| 3 | 71 |
1.6%
|
|
| 888 | 3 |
0.1%
|
|
| Sysmiss | 90 |