| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 861 |
42.2%
|
| 2 | This term | 648 |
31.8%
|
| 3 | Last term | 319 |
15.7%
|
| 4 | 2 terms ago | 47 |
2.3%
|
| 5 | 3 terms ago | 20 |
1%
|
| 6 | More than a year ago | 143 |
7%
|
| Sysmiss | 9 |