| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 1978 |
69.6%
|
| 2 | Desirable | 713 |
25.1%
|
| 3 | Neither | 139 |
4.9%
|
| 8 | Do not know | 12 |
0.4%
|
| Sysmiss | 8 |