| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 445 |
16.5%
|
| 2 | This term | 494 |
18.3%
|
| 3 | Last term | 450 |
16.7%
|
| 4 | 2 terms ago | 330 |
12.2%
|
| 5 | 3 terms ago | 237 |
8.8%
|
| 6 | More than a year ago | 739 |
27.4%
|
| Sysmiss | 94 |