| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 2174 |
75.4%
|
| 2 | Desirable | 590 |
20.5%
|
| 3 | Neither | 118 |
4.1%
|
| 8 | (Do not know) | 1 |
0%
|
| Sysmiss | 21 |