| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 2257 |
78.4%
|
| 2 | Desirable | 502 |
17.4%
|
| 3 | Neither | 115 |
4%
|
| 8 | (Do not know) | 6 |
0.2%
|
| Sysmiss | 24 |