| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 1050 |
48%
|
| 2 | Once | 92 |
4.2%
|
| 3 | Twice | 98 |
4.5%
|
| 4 | 3-5 times | 71 |
3.2%
|
| 5 | 6-10 times | 51 |
2.3%
|
| 6 | 11-20 times | 22 |
1%
|
| 7 | More than 20 times | 60 |
2.7%
|
| 8 | Not applicable | 738 |
33.7%
|
| Sysmiss | 6 |