| Value | Category | Cases | |
|---|---|---|---|
| -9 | Missing Data | 8 |
0.2%
|
| 1 | Have now | 83 |
2.1%
|
| 2 | Had in past | 31 |
0.8%
|
| 3 | Never had | 3872 |
96.9%
|
| Sysmiss | 6 |