| Value | Category | Cases | |
|---|---|---|---|
| 1 | No | 480 |
9%
|
| 2 | Once | 1029 |
19.4%
|
| 3 | Few times | 2197 |
41.3%
|
| 4 | Many times | 1608 |
30.3%
|
| Sysmiss | 14686 |