| Value | Category | Cases | |
|---|---|---|---|
| 1 | Manufacturer’s box or foil package | 615 |
49.6%
|
| 2 | Unmarked bag (nylon or paper envelope) or bottle | 612 |
49.3%
|
| 88 | Don’t know | 13 |
1%
|
| 99 | No response | 1 |
0.1%
|
| Sysmiss | 781 |