| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 600 |
38.3%
|
| 2 | This term | 129 |
8.2%
|
| 3 | Last term | 216 |
13.8%
|
| 4 | 2 terms ago | 84 |
5.4%
|
| 5 | 3 terms ago | 51 |
3.3%
|
| 6 | More than a year ago | 488 |
31.1%
|
| Sysmiss | 19 |