| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Spontaneously | 39 | 3467 |
0.7%
|
| 2 | After probe | 3038 | 246713 |
52.6%
|
| 3 | No | 2649 | 219038 |
46.7%
|
| 9 | 3 | 184 |
0%
|
|
| Sysmiss | 32360 | 0 |