| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 2155 |
74.9%
|
| 2 | Desirable | 582 |
20.2%
|
| 3 | Neither | 117 |
4.1%
|
| 8 | (Do not know) | 23 |
0.8%
|
| Sysmiss | 27 |