| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 2205 |
76.5%
|
| 2 | Desirable | 591 |
20.5%
|
| 3 | Neither | 85 |
2.9%
|
| 8 | (Do not know) | 2 |
0.1%
|
| Sysmiss | 21 |