| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 1175 |
53.7%
|
| 2 | Once | 185 |
8.5%
|
| 3 | Twice | 174 |
8%
|
| 4 | 3-5 times | 192 |
8.8%
|
| 5 | 6-10 times | 114 |
5.2%
|
| 6 | 11-20 times | 83 |
3.8%
|
| 7 | More than 20 times | 163 |
7.4%
|
| 8 | Not applicable | 101 |
4.6%
|
| Sysmiss | 1 |