| Value | Category | Cases | |
|---|---|---|---|
| -9 | Missing Data | 8 |
0.2%
|
| 1 | Have now | 2 |
0.1%
|
| 2 | Had in past | 22 |
0.6%
|
| 3 | Never had | 3963 |
99.2%
|
| Sysmiss | 5 |