| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 2330 |
82%
|
| 2 | Desirable | 415 |
14.6%
|
| 3 | Neither | 84 |
3%
|
| 8 | Do not know | 13 |
0.5%
|
| Sysmiss | 8 |