| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 754 |
52%
|
| 2 | This period | 223 |
15.4%
|
| 3 | Last period | 201 |
13.9%
|
| 4 | 2 periods ago | 85 |
5.9%
|
| 5 | 3 terms ago | 41 |
2.8%
|
| 6 | More than a year ago | 146 |
10.1%
|
| Sysmiss | 11 |