| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, all of them do | 235 |
22.5%
|
| 2 | Some do, some do not | 43 |
4.1%
|
| 3 | None | 765 |
73.2%
|
| 9 | Missing | 2 |
0.2%
|
| Sysmiss | 746 |