| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 1972 |
68.4%
|
| 2 | Desirable | 816 |
28.3%
|
| 3 | Neither | 93 |
3.2%
|
| 8 | (Do not know) | 2 |
0.1%
|
| Sysmiss | 21 |