| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 279 |
8.9%
|
| 2 | Desirable | 1983 |
63%
|
| 3 | Neither | 855 |
27.2%
|
| 8 | Do not know | 31 |
1%
|
| Sysmiss | 16 |