| Value | Category | Cases | |
|---|---|---|---|
| 0 | 3170 |
78.4%
|
|
| 1 | 817 |
20.2%
|
|
| 2 | 38 |
0.9%
|
|
| 3 | 17 |
0.4%
|
|
| 4 | 2 |
0%
|
|
| Sysmiss | 3 |