| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | No | 1170 |
97.5%
|
| 1 | Yes, once | 24 |
2%
|
| 2 | Yes, twice | 2 |
0.2%
|
| 3 | Yes, three or more times | 4 |
0.3%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 0 |
0%
|