| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 4 |
0.2%
|
| 0 | No | 2126 |
88.6%
|
| 1 | Yes, once | 156 |
6.5%
|
| 2 | Yes, twice | 56 |
2.3%
|
| 3 | Yes, three or more times | 54 |
2.3%
|
| 9 | Don't Know | 3 |
0.1%
|
| 998 | Refused | 0 |
0%
|