| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 2254 |
26.5%
|
| 2 | No | 6175 |
72.7%
|
| 77 | 9 |
0.1%
|
|
| 88 | 56 |
0.7%
|
|
| Sysmiss | 81 |