| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 1688 |
59.5%
|
| 2 | Desirable | 947 |
33.4%
|
| 3 | Neither | 172 |
6.1%
|
| 8 | Do not know | 31 |
1.1%
|
| Sysmiss | 12 |