| Value | Category | Cases | |
|---|---|---|---|
| 0 | 3 times or less per term | 25515 |
41.7%
|
| 1 | 2-3 times per month | 20330 |
33.2%
|
| 2 | Once or more per week | 15362 |
25.1%
|
| Sysmiss | 189 |