| Value | Category | Cases | |
|---|---|---|---|
| 0 | 172 |
5.2%
|
|
| 1 | 1441 |
43.8%
|
|
| 2 | 1112 |
33.8%
|
|
| 3 | 504 |
15.3%
|
|
| 4 | 58 |
1.8%
|
|
| Sysmiss | 40 |