| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 10045 |
92.3%
|
| 2 | Once | 371 |
3.4%
|
| 3 | A few times | 316 |
2.9%
|
| 4 | Many times | 156 |
1.4%
|
| Sysmiss | 28 |