| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. Day/week/month | 2393 |
80%
|
| 6 | 6. Has not been given | 550 |
18.4%
|
| 8 | 8. Don't know | 49 |
1.6%
|
| 9 | 9. Missing | 1 |
0%
|
| Sysmiss | 11238 |