| Value | Category | Cases | |
|---|---|---|---|
| 0 | 20 |
0.1%
|
|
| 1 | 19352 |
89.6%
|
|
| 2 | 1057 |
4.9%
|
|
| 3 | 1172 |
5.4%
|
|
| Sysmiss | 2045 |