| Value | Category | Cases | |
|---|---|---|---|
| -9 | Missing Data | 0 |
0%
|
| 1 | Have now | 17 |
0.4%
|
| 2 | Used to have | 26 |
0.7%
|
| 3 | Never had | 3936 |
98.9%
|
| Sysmiss | 21 |