| Value | Category | Cases | |
|---|---|---|---|
| 1 | 172 |
77.1%
|
|
| 2 | 41 |
18.4%
|
|
| 3 | 8 |
3.6%
|
|
| 4 | 1 |
0.4%
|
|
| 20 | 1 |
0.4%
|
|
| Sysmiss | 40 |