| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Yes, spontaneously | 243 | 64002 |
5.4%
|
| 2 | Yes, after probing | 462 | 127747 |
10.7%
|
| 3 | No | 1493 | 417902 |
35.1%
|
| Sysmiss | 2099 | 579630 |