| Value | Category | Cases | |
|---|---|---|---|
| -9 | Missing Data | 0 |
0%
|
| 1 | Have now | 4 |
0.1%
|
| 2 | Used to have | 23 |
0.6%
|
| 3 | Never had | 3954 |
99.3%
|
| Sysmiss | 19 |