| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 2002 |
63.4%
|
| 2 | Desirable | 933 |
29.5%
|
| 3 | Neither | 217 |
6.9%
|
| 8 | Do not know | 7 |
0.2%
|
| Sysmiss | 5 |