| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 421 |
20.4%
|
| 2 | This term | 418 |
20.3%
|
| 3 | Last term | 635 |
30.8%
|
| 4 | 2 terms ago | 148 |
7.2%
|
| 5 | 3 terms ago | 153 |
7.4%
|
| 6 | More than a year ago | 284 |
13.8%
|
| Sysmiss | 15 |