| Value | Category | Cases | |
|---|---|---|---|
| 1 | No | 107 |
6.6%
|
| 2 | Once | 198 |
12.3%
|
| 3 | Few times | 775 |
48.1%
|
| 4 | Many times | 531 |
33%
|
| Sysmiss | 18389 |