| Value | Category | Cases | |
|---|---|---|---|
| 1 | No | 311 |
79.3%
|
| 2 | Once | 27 |
6.9%
|
| 3 | Few times | 37 |
9.4%
|
| 4 | Many times | 17 |
4.3%
|
| Sysmiss | 19608 |