| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 273 |
17.4%
|
| 2 | This term | 536 |
34.2%
|
| 3 | Last term | 390 |
24.9%
|
| 4 | 2 terms ago | 109 |
7%
|
| 5 | 3 terms ago | 41 |
2.6%
|
| 6 | More than a year ago | 219 |
14%
|
| Sysmiss | 29 |