| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 278 |
9.8%
|
| 2 | No | 2555 |
89.9%
|
| 3 | 2 |
0.1%
|
|
| 9 | 7 |
0.2%
|
|
| 0 | NR | 147 | |
| Sysmiss | 11 |