| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 167 |
35.8%
|
| 2 | Once | 84 |
18%
|
| 3 | 2 - 5 times | 141 |
30.2%
|
| 4 | more than 5 times | 75 |
16.1%
|
| Sysmiss | 124 |