| Value | Category | Cases | |
|---|---|---|---|
| 1 | Once | 28 |
19.4%
|
| 2 | Twice | 12 |
8.3%
|
| 3 | Three times | 5 |
3.5%
|
| 4 | Four times | 2 |
1.4%
|
| 5 | More | 10 |
6.9%
|
| 6 | Never | 31 |
21.5%
|
| 7 | Not Applicable | 56 |
38.9%
|
| Sysmiss | 15184 |