| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | DOES NOT APPLY | 0 |
0%
|
| 1 | Yes | 180 |
41.4%
|
| 2 | No | 255 |
58.6%
|
| Sysmiss | 1324 |