| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | No | 780 |
65%
|
| 1 | Yes, once | 181 |
15.1%
|
| 2 | Yes, twice | 103 |
8.6%
|
| 3 | Yes, three or more times | 135 |
11.3%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 1 |
0.1%
|