| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 |
2.3%
|
|
| 1 | 2 |
4.7%
|
|
| 2 | 9 |
20.9%
|
|
| 3 | 16 |
37.2%
|
|
| 4 | 14 |
32.6%
|
|
| 9 | 1 |
2.3%
|
|
| Sysmiss | 4300 |