| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 |
0%
|
|
| 1 | Yes | 810 |
18.3%
|
| 2 | No | 3614 |
81.7%
|
| 20 | 1 |
0%
|
|
| Sysmiss | 17481 |