| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 544 |
42.2%
|
| 2 | This term | 262 |
20.3%
|
| 3 | Last term | 124 |
9.6%
|
| 4 | 2 terms ago | 52 |
4%
|
| 5 | 3 terms ago | 55 |
4.3%
|
| 6 | More than a year ago | 251 |
19.5%
|
| Sysmiss | 26 |