| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 2745 |
87%
|
| 2 | Desirable | 353 |
11.2%
|
| 3 | Neither | 53 |
1.7%
|
| 8 | Do not know | 4 |
0.1%
|
| Sysmiss | 9 |