| Value | Category | Cases | |
|---|---|---|---|
| 0 | 40 |
93%
|
|
| 10 | 1 |
2.3%
|
|
| 15 | 1 |
2.3%
|
|
| 20 | 1 |
2.3%
|
|
| Sysmiss | 2895 |