| Value | Category | Cases | |
|---|---|---|---|
| 1 | Once | 15 |
37.5%
|
| 2 | Twice | 17 |
42.5%
|
| 3 | Thrice or more | 8 |
20%
|
| 98 | Don't Know | 0 |
0%
|
| Sysmiss | 1499 |