| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 907 |
41.5%
|
| 2 | Once | 77 |
3.5%
|
| 3 | Twice | 111 |
5.1%
|
| 4 | 3-5 times | 111 |
5.1%
|
| 5 | 6-10 times | 81 |
3.7%
|
| 6 | 11-20 times | 45 |
2.1%
|
| 7 | More than 20 times | 110 |
5%
|
| 8 | Not applicable | 740 |
33.8%
|
| Sysmiss | 6 |