| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 455 |
16.1%
|
| 2 | Desirable | 1504 |
53.1%
|
| 3 | Neither | 832 |
29.4%
|
| 8 | Do not know | 43 |
1.5%
|
| Sysmiss | 16 |