| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, paper | 34 |
0.5%
|
| 2 | Yes, electronic | 40 |
0.6%
|
| 3 | Yes, paper and electronic | 42 |
0.6%
|
| 4 | No | 1009 |
15.5%
|
| Sysmiss | 5375 |