| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 1120 |
41.3%
|
| 2 | This term | 792 |
29.2%
|
| 3 | Last term | 297 |
11%
|
| 4 | 2 terms ago | 69 |
2.5%
|
| 5 | 3 terms ago | 46 |
1.7%
|
| 6 | More than a year ago | 385 |
14.2%
|
| Sysmiss | 93 |