| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 1044 |
47.7%
|
| 2 | Once | 78 |
3.6%
|
| 3 | Twice | 80 |
3.7%
|
| 4 | 3-5 times | 85 |
3.9%
|
| 5 | 6-10 times | 59 |
2.7%
|
| 6 | 11-20 times | 25 |
1.1%
|
| 7 | More than 20 times | 72 |
3.3%
|
| 8 | Not applicable | 739 |
33.8%
|
| Sysmiss | 6 |