| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 320 |
18.8%
|
| 2 | This term | 880 |
51.7%
|
| 3 | Last term | 368 |
21.6%
|
| 4 | 2 terms ago | 77 |
4.5%
|
| 5 | 3 terms ago | 27 |
1.6%
|
| 6 | more than 3 years | 29 |
1.7%
|
| Sysmiss | 3 |