Value | Category | Cases | |
---|---|---|---|
1 | Yes, it is essential | 664 |
44.8%
|
2 | Yes, but not essential | 149 |
10.1%
|
3 | No, it is not useful | 80 |
5.4%
|
4 | Other | 124 |
8.4%
|
Sysmiss | 464 |