| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2 |
0.8%
|
|
| 1 | 31 |
13.1%
|
|
| 2 | 110 |
46.4%
|
|
| 3 | 66 |
27.8%
|
|
| 4 | 23 |
9.7%
|
|
| 5 | 2 |
0.8%
|
|
| 20 | 1 |
0.4%
|
|
| 24 | 1 |
0.4%
|
|
| 28 | 1 |
0.4%
|
|
| Sysmiss | 217 |