| Value | Category | Cases | |
|---|---|---|---|
| 1 | No | 88 |
6.9%
|
| 2 | Once | 137 |
10.7%
|
| 3 | Few times | 401 |
31.2%
|
| 4 | Many times | 658 |
51.2%
|
| Sysmiss | 18716 |