| Value | Category | Cases | |
|---|---|---|---|
| 0 | 23 |
4.6%
|
|
| 1 | 148 |
29.7%
|
|
| 2 | 300 |
60.1%
|
|
| 3 | 27 |
5.4%
|
|
| 4 | 1 |
0.2%
|
|
| Sysmiss | 1678 |