| Value | Category | Cases | |
|---|---|---|---|
| 1 | No | 33 |
7.3%
|
| 2 | Once | 64 |
14.3%
|
| 3 | Few times | 150 |
33.4%
|
| 4 | Many times | 202 |
45%
|
| Sysmiss | 19551 |