| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 572 |
35.5%
|
| 2 | This term | 170 |
10.6%
|
| 3 | Last term | 212 |
13.2%
|
| 4 | 2 terms ago | 164 |
10.2%
|
| 5 | 3 terms ago | 79 |
4.9%
|
| 6 | More than a year ago | 414 |
25.7%
|
| Sysmiss | 5 |