| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1661 |
8.1%
|
|
| 2 | 181 |
0.9%
|
|
| 3 | 140 |
0.7%
|
|
| 4 | 18599 |
90.4%
|
|
| Sysmiss | 26 |