| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 839 |
31.9%
|
| 2 | This term | 287 |
10.9%
|
| 3 | Last term | 671 |
25.5%
|
| 4 | 2 terms ago | 235 |
8.9%
|
| 5 | 3 terms ago | 152 |
5.8%
|
| 6 | More than a year ago | 446 |
17%
|
| Sysmiss | 211 |