| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 401 |
20.5%
|
| 2 | This term | 837 |
42.9%
|
| 3 | Last term | 530 |
27.1%
|
| 4 | 2 terms ago | 98 |
5%
|
| 5 | 3 terms ago | 24 |
1.2%
|
| 6 | More than a year ago | 63 |
3.2%
|
| Sysmiss | 8 |