| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 585 |
34.1%
|
| 2 | This term | 383 |
22.3%
|
| 3 | Last term | 288 |
16.8%
|
| 4 | 2 terms ago | 107 |
6.2%
|
| 5 | 3 terms ago | 84 |
4.9%
|
| 6 | More than a year ago | 267 |
15.6%
|
| Sysmiss | 34 |