| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 1915 |
67.5%
|
| 2 | Desirable | 761 |
26.8%
|
| 3 | Neither | 157 |
5.5%
|
| 8 | Do not know | 2 |
0.1%
|
| Sysmiss | 15 |