| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 2514 |
88.4%
|
| 2 | Desirable | 280 |
9.8%
|
| 3 | Neither | 47 |
1.7%
|
| 8 | Do not know | 4 |
0.1%
|
| Sysmiss | 5 |