| Value | Category | Cases | |
|---|---|---|---|
| 1 | Essential | 2002 |
69.6%
|
| 2 | Desirable | 782 |
27.2%
|
| 3 | Neither | 79 |
2.7%
|
| 8 | (Do not know) | 15 |
0.5%
|
| Sysmiss | 26 |