Value | Category | Cases | |
---|---|---|---|
1 | Never | 616 |
42.7%
|
2 | This semester | 132 |
9.2%
|
3 | Last semester | 157 |
10.9%
|
4 | 2 semesters ago | 81 |
5.6%
|
5 | 3 semesters ago | 40 |
2.8%
|
6 | More than a year ago | 416 |
28.8%
|
Sysmiss | 4 |