| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 18 |
8.8%
|
| 2 | Once | 18 |
8.8%
|
| 3 | 2 times | 32 |
15.7%
|
| 4 | 3 times | 50 |
24.5%
|
| 5 | 4+ times | 68 |
33.3%
|
| 98 | Don’t know | 18 |
8.8%
|
| Sysmiss | 1 |