| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 570 |
36.6%
|
| 2 | This term | 399 |
25.6%
|
| 3 | Last term | 299 |
19.2%
|
| 4 | 2 terms ago | 89 |
5.7%
|
| 5 | 3 terms ago | 49 |
3.1%
|
| 6 | More than a year ago | 152 |
9.8%
|
| Sysmiss | 9 |