| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 309 |
22.2%
|
| 2 | This term | 219 |
15.7%
|
| 3 | Last term | 245 |
17.6%
|
| 4 | 2 terms ago | 105 |
7.5%
|
| 5 | 3 terms ago | 92 |
6.6%
|
| 6 | More than a year ago | 424 |
30.4%
|
| Sysmiss | 134 |