| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 4455 |
87.3%
|
| 1 | Once | 80 |
1.6%
|
| 2 | Twice | 53 |
1%
|
| 3 | 3-5 times | 33 |
0.6%
|
| 4 | More than 6 times | 45 |
0.9%
|
| 5 | I do not know | 0 |
0%
|
| 6 | Not applicable | 78 |
1.5%
|
| Sysmiss | 361 |