| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 1669 |
76.3%
|
| 2 | Once | 165 |
7.5%
|
| 3 | Twice | 97 |
4.4%
|
| 4 | 3-5 times | 98 |
4.5%
|
| 5 | 6-10 times | 46 |
2.1%
|
| 6 | 11-20 times | 39 |
1.8%
|
| 7 | More than 20 times | 63 |
2.9%
|
| 8 | Not applicable | 11 |
0.5%
|