| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 2191 |
76%
|
| 2 | Desirable | 625 |
21.7%
|
| 3 | Neither | 66 |
2.3%
|
| 8 | (Do not know) | 2 |
0.1%
|
| Sysmiss | 20 |