| Value | Category | Cases | |
|---|---|---|---|
| -9 | missing | 1 |
8.3%
|
| -8 | dont know | 0 |
0%
|
| -7 | na | 0 |
0%
|
| 1 | yes, good quality & safe to use | 6 |
50%
|
| 2 | yes, poor quality or unsafe | 5 |
41.7%
|
| Sysmiss | 187 |