| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 1878 |
65.1%
|
| 2 | Desirable | 840 |
29.1%
|
| 3 | Neither | 142 |
4.9%
|
| 8 | (Do not know) | 24 |
0.8%
|
| Sysmiss | 20 |