| Value | Category | Cases | |
|---|---|---|---|
| 1 | Once | 7 |
3.6%
|
| 2 | Twice | 7 |
3.6%
|
| 3 | Three times | 0 |
0%
|
| 4 | Four times | 0 |
0%
|
| 5 | More | 0 |
0%
|
| 6 | Never | 78 |
40.4%
|
| 7 | Not Applicable | 101 |
52.3%
|
| Sysmiss | 17188 |