| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 2541 |
88.2%
|
| 2 | Desirable | 298 |
10.3%
|
| 3 | Neither | 36 |
1.2%
|
| 8 | (Do not know) | 7 |
0.2%
|
| Sysmiss | 22 |