| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 786 |
36%
|
| 2 | This term | 604 |
27.7%
|
| 3 | Last term | 561 |
25.7%
|
| 4 | 2 terms ago | 65 |
3%
|
| 5 | 3 terms ago | 51 |
2.3%
|
| 6 | More than a year ago | 116 |
5.3%
|
| Sysmiss | 58 |