| Value | Category | Cases | |
|---|---|---|---|
| 0 | 59 |
4.2%
|
|
| 1 | 49 |
3.5%
|
|
| 2 | 67 |
4.8%
|
|
| 3 | 266 |
19.1%
|
|
| 4 | 955 |
68.4%
|
|
| Sysmiss | 174 |