| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 563 |
30.8%
|
| 2 | This term | 290 |
15.9%
|
| 3 | Last term | 254 |
13.9%
|
| 4 | 2 terms ago | 174 |
9.5%
|
| 5 | 3 terms ago | 83 |
4.5%
|
| 6 | More than a year ago | 463 |
25.3%
|
| Sysmiss | 8 |