| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 2041 |
71.8%
|
| 2 | Desirable | 682 |
24%
|
| 3 | Neither | 113 |
4%
|
| 8 | Do not know | 5 |
0.2%
|
| Sysmiss | 9 |