| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 1162 |
53.1%
|
| 2 | Once | 194 |
8.9%
|
| 3 | Twice | 201 |
9.2%
|
| 4 | 3-5 times | 200 |
9.1%
|
| 5 | 6-10 times | 138 |
6.3%
|
| 6 | 11-20 times | 91 |
4.2%
|
| 7 | More than 20 times | 192 |
8.8%
|
| 8 | Not applicable | 10 |
0.5%
|