| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 860 |
28.7%
|
| 2 | This term | 462 |
15.4%
|
| 3 | Last term | 545 |
18.2%
|
| 4 | 2 terms ago | 251 |
8.4%
|
| 5 | 3 terms ago | 123 |
4.1%
|
| 6 | More than a year ago | 757 |
25.3%
|
| Sysmiss | 9 |