| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 561 |
19.5%
|
| 2 | This term | 1100 |
38.3%
|
| 3 | Last term | 709 |
24.7%
|
| 4 | Two years ago | 219 |
7.6%
|
| 5 | More than year ago | 286 |
9.9%
|
| Sysmiss | 31 |