| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 2425 |
85.4%
|
| 2 | Desirable | 343 |
12.1%
|
| 3 | Neither | 69 |
2.4%
|
| 8 | Do not know | 3 |
0.1%
|
| Sysmiss | 10 |