| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 991 |
25.6%
|
| 2 | This term | 840 |
21.7%
|
| 3 | Last term | 828 |
21.4%
|
| 4 | 2 terms ago | 225 |
5.8%
|
| 5 | 3 terms ago | 272 |
7%
|
| 6 | More than a year ago | 715 |
18.5%
|
| Sysmiss | 64 |