| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 3297 |
74.6%
|
| 2 | Once | 184 |
4.2%
|
| 3 | Twice | 248 |
5.6%
|
| 4 | 3-5 times | 240 |
5.4%
|
| 5 | 6-10 times | 155 |
3.5%
|
| 6 | 11-20 times | 79 |
1.8%
|
| 7 | More than 20 times | 203 |
4.6%
|
| 8 | Not applicable | 6 |
0.1%
|
| Sysmiss | 5 |