| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 597 |
18.9%
|
| 2 | Desirable | 1851 |
58.7%
|
| 3 | Neither | 695 |
22%
|
| 8 | Do not know | 13 |
0.4%
|
| Sysmiss | 8 |