| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Yes, spontaneously | 208 | 54424 |
4.6%
|
| 2 | Yes, after probing | 447 | 122766 |
10.3%
|
| 3 | No | 1545 | 433006 |
36.4%
|
| Sysmiss | 2097 | 579085 |