| Value | Category | Cases | |
|---|---|---|---|
| 1 | No | 938 |
85.7%
|
| 2 | Once | 83 |
7.6%
|
| 3 | Few times | 49 |
4.5%
|
| 4 | Many times | 25 |
2.3%
|
| Sysmiss | 18905 |