| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 652 |
33.8%
|
| 2 | This term | 595 |
30.9%
|
| 3 | Last term | 289 |
15%
|
| 4 | 2 terms ago | 161 |
8.4%
|
| 5 | 3 terms ago | 55 |
2.9%
|
| 6 | More than a year ago | 175 |
9.1%
|
| Sysmiss | 55 |