| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 1242 |
31.1%
|
| 2 | This term | 926 |
23.2%
|
| 3 | Last term | 892 |
22.3%
|
| 4 | 2 terms ago | 259 |
6.5%
|
| 5 | 3 terms ago | 99 |
2.5%
|
| 6 | More than a year ago | 578 |
14.5%
|
| Sysmiss | 42 |