Value | Category | Cases | |
---|---|---|---|
1 | Yes, it is essential | 992 |
67%
|
2 | Yes, but not essential | 141 |
9.5%
|
3 | No, it is not useful | 95 |
6.4%
|
4 | Other | 135 |
9.1%
|
Sysmiss | 118 |