| Value | Category | Cases | |
|---|---|---|---|
| 1 | Once | 2 |
3.8%
|
| 2 | Twice | 11 |
21.2%
|
| 3 | Thrice or more | 39 |
75%
|
| 98 | Don't Know | 0 |
0%
|
| Sysmiss | 1487 |