| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 2091 |
73.7%
|
| 2 | Desirable | 635 |
22.4%
|
| 3 | Neither | 97 |
3.4%
|
| 8 | Do not know | 16 |
0.6%
|
| Sysmiss | 11 |