| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 927 |
8.5%
|
| 2 | 1-3 times | 6758 |
62%
|
| 3 | 3+ times | 3217 |
29.5%
|
| 22 | 1 |
0%
|
|
| Sysmiss | 13 |