| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 2071 |
72.9%
|
| 2 | Desirable | 660 |
23.2%
|
| 3 | Neither | 96 |
3.4%
|
| 8 | Do not know | 15 |
0.5%
|
| Sysmiss | 8 |