| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 2392 |
75.7%
|
| 2 | Desirable | 686 |
21.7%
|
| 3 | Neither | 77 |
2.4%
|
| 8 | Do not know | 4 |
0.1%
|
| Sysmiss | 5 |