| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 526 |
36.2%
|
| 2 | This term | 168 |
11.6%
|
| 3 | Last term | 120 |
8.3%
|
| 4 | 2 terms ago | 160 |
11%
|
| 5 | 3 terms ago | 91 |
6.3%
|
| 6 | More than a year ago | 388 |
26.7%
|
| Sysmiss | 28 |