| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 593 |
21%
|
| 2 | Desirable | 1524 |
53.9%
|
| 3 | Neither | 665 |
23.5%
|
| 8 | Do not know | 46 |
1.6%
|
| Sysmiss | 22 |