| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 2277 |
80.2%
|
| 2 | Desirable | 461 |
16.2%
|
| 3 | Neither | 88 |
3.1%
|
| 8 | Do not know | 14 |
0.5%
|
| Sysmiss | 10 |