| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 745 |
26.2%
|
| 2 | Desirable | 1287 |
45.3%
|
| 3 | Neither | 763 |
26.9%
|
| 8 | Do not know | 45 |
1.6%
|
| Sysmiss | 10 |