| Value | Category | Cases | |
|---|---|---|---|
| -97 | Don't know | 3 |
0.7%
|
| 1 | Once | 6 |
1.4%
|
| 2 | 2.3 times | 364 |
83.9%
|
| 3 | 4-5 times | 53 |
12.2%
|
| 4 | At least 5 times | 8 |
1.8%
|
| a | Not applicable | 0 | |
| b | Don't know | 0 | |
| c | Refused to respond | 0 |