| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 1199 |
54.8%
|
| 2 | Once | 23 |
1.1%
|
| 3 | Twice | 29 |
1.3%
|
| 4 | 3-5 times | 34 |
1.6%
|
| 5 | 6-10 times | 18 |
0.8%
|
| 6 | 11-20 times | 8 |
0.4%
|
| 7 | More than 20 times | 18 |
0.8%
|
| 8 | Not applicable | 853 |
39%
|
| Sysmiss | 6 |