| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 |
0.5%
|
|
| 1 | 167 |
79.5%
|
|
| 2 | 8 |
3.8%
|
|
| 3 | 29 |
13.8%
|
|
| 4 | 5 |
2.4%
|
|
| Sysmiss | 23 |