| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 1599 |
52.6%
|
| 2 | This term | 690 |
22.7%
|
| 3 | Last term | 231 |
7.6%
|
| 4 | 2 terms ago | 103 |
3.4%
|
| 5 | 3 terms ago | 57 |
1.9%
|
| 6 | More than a year ago | 359 |
11.8%
|
| Sysmiss | 44 |