| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 1539 |
54.1%
|
| 2 | Desirable | 982 |
34.5%
|
| 3 | Neither | 309 |
10.9%
|
| 8 | Do not know | 13 |
0.5%
|
| Sysmiss | 7 |