| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 1731 |
61%
|
| 2 | Desirable | 930 |
32.8%
|
| 3 | Neither | 168 |
5.9%
|
| 8 | Do not know | 10 |
0.4%
|
| Sysmiss | 11 |