| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 470 |
29.4%
|
| 2 | This term | 152 |
9.5%
|
| 3 | Last term | 380 |
23.7%
|
| 4 | 2 terms ago | 135 |
8.4%
|
| 5 | 3 terms ago | 99 |
6.2%
|
| 6 | More than a year ago | 365 |
22.8%
|
| Sysmiss | 53 |