| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 1796 |
63.4%
|
| 2 | Desirable | 752 |
26.5%
|
| 3 | Neither | 277 |
9.8%
|
| 8 | Do not know | 9 |
0.3%
|
| Sysmiss | 16 |