| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 395 |
27.5%
|
| 2 | This term | 655 |
45.7%
|
| 3 | Last term | 251 |
17.5%
|
| 4 | 2 terms ago | 69 |
4.8%
|
| 5 | 3 terms ago | 25 |
1.7%
|
| 6 | more than 3 years | 39 |
2.7%
|
| Sysmiss | 35 |