| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Does not apply | 9 |
6%
|
| 1 | Yes | 8 |
5.3%
|
| 2 | No | 46 |
30.5%
|
| NA | 88 |
58.3%
|