| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Spontaneously | 1262 | 104694 |
22.3%
|
| 2 | After probe | 3023 | 245118 |
52.2%
|
| 3 | No | 1444 | 119591 |
25.5%
|
| Sysmiss | 32360 | 0 |