| Value | Category | Cases | |
|---|---|---|---|
| 0 | 40 |
26.7%
|
|
| 3 | 1 |
0.7%
|
|
| 12 | 1 |
0.7%
|
|
| 30 | 103 |
68.7%
|
|
| 31 | 4 |
2.7%
|
|
| 39 | 1 |
0.7%
|
|
| Sysmiss | 59 |